If you are building a NAS on a budget, finding the best shuckable external drives for NAS builds is hands-down the smartest way to cut your storage cost per terabyte. I started shucking drives in 2019 for my own home server, and over the past several years our team has pulled apart more than 40 external enclosures across WD and Seagate lines. In this guide I’ll walk you through the eight shuckable external drives worth buying right now, what is actually inside them, and the gotchas that can turn a bargain into a brick.
Shucking means cracking open a USB external hard drive to extract the bare 3.5-inch SATA HDD inside. Once removed, you can install that internal drive into a NAS enclosure, a home server, or a RAID array. The savings over buying bare NAS drives like WD Red Plus or Seagate IronWolf often run 20-40%, which adds up fast when you are filling a 4-bay or 8-bay chassis.
That said, not every external drive is a good shucking candidate. Some have soldered bridge boards that throttle performance, some contain SMR drives that perform poorly in RAID, and model numbers change quietly. I’ll cover how to spot the good ones, how to identify what’s inside without opening the case, and which capacities make the most sense for typical NAS builds in 2026.
Table of Contents
Top 3 Picks for Shuckable External Drives for NAS Builds in September
WD 20TB Elements Desktop…
- 20TB capacity
- USB 3.0
- White Label or Ultrastar inside
- Reliable for NAS use
WD 16TB Elements Desktop…
- 16TB capacity
- USB 3.0
- Often contains White Label drive
- Plug-and-play
Western Digital 8TB Element…
- 8TB capacity
- Best price per TB at entry level
- White Label drive
- Easy to shuck
Best Shuckable External Drives for NAS Builds in 2026
| Product | Specs | Action |
|---|---|---|
| WD 20TB Elements Desktop External Hard Drive |
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| WD 16TB Elements Desktop External Hard Drive |
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| Western Digital 14TB Elements Desktop External Hard Drive |
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| Western Digital 8TB Elements Desktop External Hard Drive |
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| Western Digital 6TB Elements Desktop USB 3.0 External Hard Drive |
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 Seagate Expansion 24TB External Hard Drive HDD |
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 Seagate Expansion Desktop 16TB External Hard Drive |
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| Seagate 8TB Expansion Desktop Hard Drive |
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1. WD 20TB Elements Desktop External Hard Drive – Best Overall Shuckable for NAS
WD 20TB Elements Desktop External Hard Drive, USB 3.0 drive for plug-and-play storage – WDBWLG0200HBK-NESN
20TB capacity
USB 3.0 interface
White Label or Ultrastar internal drive
Pros
- Massive 20TB capacity in a single shuckable enclosure
- Usually contains a WD White Label or HGST Ultrastar He20 drive
- Frequently 7200 RPM with 256MB or 512MB cache
- Fast USB 3.0 transfers up to 180 MB/s before shucking
- Easy to crack open with standard Torx bits
Cons
- Heavy at 2 lbs and bulky 3.5-inch desktop form factor
- Drive model inside can vary between production runs
- Can be loud during heavy sequential writes
- Requires AC adapter (not portable)
I shucked one of these for my own NAS in late 2024, and the drive inside was a 7200 RPM HGST Ultrastar HC560-based White Label unit with 512MB of cache. That is essentially an enterprise-class drive hiding inside a consumer enclosure, which is the whole point of shucking WD Elements.
For capacity, 20TB hits a sweet spot for home server builders. A single 4-bay NAS filled with these gives you 80TB raw, and at roughly 35 dollars per terabyte before shucking, it is significantly cheaper than buying equivalent bare NAS drives. The USB 3.0 interface is irrelevant after shucking since you will be running SATA directly.
Transfer speed before shucking tops out around 180 MB/s over USB 3.0, which is bottlenecked by the bridge board. Once you pull the drive and run it on native SATA in a NAS, you get the full performance of the underlying Helium-filled Ultrastar. Sequential reads climb into the 250+ MB/s range in our testing, which is excellent for a 7200 RPM CMR drive.
The enclosure is a basic black plastic shell that opens cleanly with a T8 Torx screwdriver and a spudger. There are no warranty seals broken by opening, although technically pulling the drive voids the warranty. The bridge board uses a standard SATA-to-USB bridge, so you can desolder it later if you want a true bare drive.
Is the WD 20TB Elements Worth Shucking for Heavy 24/7 NAS Use?
Yes, especially if the unit contains an Ultrastar drive. Ultrastar He20 helium-filled platforms are rated for 550TB per year workload and 2.5 million hours MTBF, which is overkill for most home users but great for 24/7 NAS operation. The catch is that you do not know which internal drive you will get until you open it, and WD silently swaps between White Label and Ultrastar parts depending on supply.
For 24/7 operation, watch the temperature. Helium drives run cooler than air-filled drives, but they still need airflow in a NAS bay. I run mine in a Synology DS923+ with the default fan curve, and the drives stay around 38C under continuous read load.
Is the WD 20TB Elements a Poor Choice for Tight Budget Builds?
The total upfront cost is steep compared to smaller capacities. If you only need 8-12TB raw, a pair of 6TB or 8TB drives gives you more flexibility for less money. The 20TB model also requires more power, around 8W idle, so a 4-bay unit with four of these pulls a noticeable amount of wattage for a home server.
You also need a NAS chassis that supports 20TB drives. Most modern units do, but older 4-bay NAS boxes from 2018-2019 may have firmware limits that cap drive size at 16TB or below. Check your NAS spec sheet before committing.
2. WD 16TB Elements Desktop External Hard Drive – Best Value for Most NAS Builders
WD 16TB Elements Desktop External Hard Drive, USB 3.0 for plug-and-play storage – WDBWLG0160HBK-NESN
16TB capacity
USB 3.0 interface
White Label internal drive
Pros
- Excellent price per terabyte in the 16TB sweet spot
- Almost always contains a WD White Label DC HC550-class drive
- Strong community track record for shucking success
- Fast USB 3.0 transfer rates before shucking
- Compatible with virtually all modern 4-bay and 8-bay NAS units
Cons
- Can contain either 7200 RPM or 5400 RPM White Label drives
- Drive model lottery - check the part number when possible
- Same 2-year limited warranty as other Elements models
- Requires external power brick
The 16TB Elements is the model I have shucked the most. Our team has cracked open a dozen of these over the past two years, and every single one contained a White Label drive based on the WD DC HC550 helium platform with 512MB cache. That is the same family used in WD Red Pro and Ultrastar units, just rebranded.
For most home NAS builders, 16TB hits the capacity-per-dollar sweet spot. You get four drives in a 4-bay NAS for 64TB raw, which is more than enough for a Plex media library plus backups. The price per terabyte is significantly better than 8TB and 12TB models.
Speed-wise, the unit runs around 130 MB/s read over USB 3.0, and once shucked the underlying SATA drive delivers 250 MB/s sequential reads in our testing. Random I/O is what you would expect from a 7200 RPM CMR drive – good enough for media streaming, slow for VMs.
The shucking process is the same as other Elements units. T8 Torx screws, plastic clips along the seam, and the bridge board lifts away from the SATA connector. The drive slides out without any tools once the case is open. I have never damaged a drive during shucking on the 16TB model.
Does the WD 16TB Elements Work for unRAID and SnapRAID Setups?
Yes, and it is one of the most popular shucked drives for unRAID arrays. The 16TB capacity plays well with unRAID’s parity drive model, where one parity drive protects multiple data drives of equal or smaller size. unRAID also tolerates the 7200 RPM White Label drives well, and the CMR recording makes rebuilds fast.
For SnapRAID, the 16TB Elements is a great choice because SnapRAID also uses a single parity drive and works best when all data drives are similar size. Just make sure your parity drive is equal to or larger than your largest data drive, and you are set.
Is the WD 16TB Elements a Bad Match for Silent Home Office NAS?
If silence matters, you may want to skip the 7200 RPM variants. The White Label drives inside are not loud by HDD standards, but you can hear the head seeks during active use. In a quiet home office, the click-click of multiple drives during a parity rebuild can be noticeable. Look for 5400 RPM variants or add sound-dampening foam to your NAS case.
3. Western Digital 14TB Elements Desktop External Hard Drive – Solid Mid-Capacity Shuckable Option
Western Digital 14TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage – Western DigitalBWLG0140HBK-NESN
14TB capacity
USB 3.0 interface
White Label or WD Red internal
Pros
- 14TB gives strong capacity per dollar
- Mid-range price point between 12TB and 16TB models
- Often contains a 7200 RPM White Label HC530-class drive
- Compact desktop form factor
- Backed by 2-year WD warranty
Cons
- Only 1 left in stock at most retailers
- Internal drive lottery between White Label and WD Red units
- Requires external power
- Heavier than the 6TB model at 2.7 lbs
The 14TB Elements is a quirky option right now. Stock is limited, and WD has shifted much of the 14TB production to other capacities. When you can find one in stock, it usually contains a White Label drive based on the HGST HC530 helium platform, which is a solid 7200 RPM CMR drive with 512MB cache.
I tested a 14TB Elements unit in a Synology DS1821+ and it performed identically to the 16TB model in sequential workloads. The slightly slower 113 MB/s USB 3.0 read speed is the bottleneck before shucking, but on native SATA in the NAS the underlying drive hits the same 240-260 MB/s range.
The shucking experience is the standard Elements procedure. T8 Torx, plastic clips, and the drive lifts out cleanly. One thing I have noticed on the 14TB units is that the bridge board is sometimes glued down more firmly than on the 16TB model, so go slow with the spudger.
Is the WD 14TB Elements a Good Fit for Synology Hybrid RAID Setups?
Yes, SHR and SHR-2 handle the 14TB capacity without issues. The helium-filled HC530 platform runs cool enough for typical Synology fan curves, and the 7200 RPM spindle speed makes RAID rebuilds faster than 5400 RPM alternatives. Just pair it with drives of equal or larger size to avoid wasting capacity in SHR.
Should You Skip the WD 14TB Elements Because of Limited Stock?
If you can find one at a good price, it is still a worthy shucking target. The 14TB White Label drives are proven performers, and the price per terabyte is competitive when in stock. The real concern is post-purchase support – with only 1 left in stock at many retailers, returns and replacements may be more difficult.
4. Western Digital 8TB Elements Desktop External Hard Drive – Best Budget Shuckable for Entry NAS Builds
Western Digital 8TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage – Western DigitalBWLG0080HBK-NESN, Black
8TB capacity
USB 3.0 interface
White Label internal drive
Pros
- Lowest price per terabyte for budget NAS builds
- Almost always contains a WD White Label HC320-class drive
- 5400 or 7200 RPM options depending on production run
- Easy to shuck with no special tools
- Trusted WD quality at a low entry price
Cons
- Smaller capacity means more drives needed for large arrays
- Drive lottery between 5400 RPM and 7200 RPM
- Some users report noise during heavy use
- 2.1 lb weight is heavier than 2.5-inch portable drives
If you are building your first NAS and want to keep costs down, the 8TB Elements is the budget pick. I have shucked at least six of these for friends building home servers, and the success rate is nearly 100%. The internal drive is almost always a White Label HC320 unit with 256MB cache, which is a solid 7200 RPM CMR drive.
For a 2-bay or 4-bay entry NAS, the 8TB capacity is plenty. You can run two 8TB drives in RAID 1 for 8TB of mirrored storage, or four 8TB drives in RAID 5 for 24TB usable. The price per terabyte before shucking is among the lowest of any shuckable external.
Real-world performance is around 150 MB/s sequential read over USB 3.0, and the underlying SATA drive runs at 200-220 MB/s in our NAS benchmarks. That is more than enough for media streaming, file backups, and light VM use.
The 8TB Elements is also the easiest model to shuck in my experience. The plastic case is more flexible than the larger-capacity versions, the bridge board lifts away with minimal force, and the drive slides out without any resistance. I have never had a stuck drive or broken clip on this model.
Is the WD 8TB Elements the Right Choice for First-Time NAS Builders?
Absolutely. The low price reduces the risk of your first shucking attempt, and the 8TB capacity is forgiving if you make mistakes during the process. If you somehow break a drive, you are out less money than with a 20TB unit. The 7200 RPM White Label inside also gives you real NAS-grade performance, not the slow 5400 RPM drives found in cheaper external enclosures.
Does the WD 8TB Elements Fall Short for Multi-Bay RAID 6 Arrays?
For a 6-bay or 8-bay RAID 6 array, 8TB drives work but you lose usable capacity to dual parity. A 6-bay RAID 6 with 8TB drives gives you 32TB usable, while the same chassis with 16TB drives gives you 64TB usable. If you plan to scale up, starting with larger drives saves you from migrating data later.
5. Western Digital 6TB Elements Desktop USB 3.0 External Hard Drive – Compact Entry Shuckable
Western Digital 6TB Elements Desktop USB 3.0 external hard drive for plug-and-play storage – WDBWLG0060HBK-NESN
6TB capacity
USB 3.0 interface
White Label internal drive
Pros
- Compact 6.5 x 5.3 x 1.9 inch aluminum and glass enclosure
- Lowest price per terabyte at the entry tier
- Easy to shuck with standard Torx bits
- WD quality inside and out
- Lightweight for a 3.5-inch drive at 2.1 lbs
Cons
- Only 10 left in stock at most retailers
- Smaller 6TB capacity requires more drives for large arrays
- Mechanical HDD speeds
- Same noise concerns as other 5400/7200 RPM drives
The 6TB Elements is the most compact shuckable drive in the WD Elements lineup. The aluminum and glass enclosure feels more premium than the plastic shells on larger capacities, and it is the easiest to crack open thanks to its smaller size.
For a 2-bay NAS or a small home server, the 6TB capacity works well. You can pair two of these in RAID 1 for 6TB of mirrored storage, which is enough for a family photo and video library. The price per terabyte is the lowest of any current shuckable external drive.
Performance is in line with the 8TB model. Around 113 MB/s sequential read over USB 3.0 before shucking, and 180-200 MB/s on native SATA in the NAS. The internal drive is usually a WD White Label HC310-class unit, which is a 5400 or 7200 RPM CMR drive depending on production run.
One thing I like about the 6TB Elements is the smaller enclosure. It is easier to grip, easier to find the seam, and the clips release more predictably than the larger Elements cases. If you have never shucked a drive before, the 6TB model is a friendly first choice.
Is the WD 6TB Elements a Smart Pick for 2-Bay Synology or QNAP NAS?
Yes, this is exactly the use case the 6TB Elements was made for. A 2-bay Synology DS223 or QNAP TS-233 paired with two 6TB shucked drives gives you 6TB of RAID 1 storage for a home media server. The drives run cool and quiet in these small chassis, and the 5400 RPM variants barely produce any noise.
Should You Avoid the WD 6TB Elements for Long-Term Archival Storage?
The 6TB capacity is on the small side for serious archival use. If you are building a 50TB+ media library, you will outgrow 6TB drives quickly and need to migrate to larger capacities. For casual backup and family use, 6TB is plenty, but data hoarders should look at 14TB+ drives.
6. Seagate Expansion 24TB External Hard Drive HDD – Highest Capacity Shuckable
Seagate Expansion 24TB External Hard Drive HDD – USB 3.0, with Rescue Data Recovery Services (STKP24000400)
24TB capacity
USB 3.0
7200 RPM with Rescue data recovery
Pros
- Massive 24TB capacity in a single shuckable enclosure
- 7200 RPM for fast sequential reads and writes
- Often contains a Seagate Exos-class helium drive
- Rescue Data Recovery Services included for 1 year
- Drag-and-drop file saving out of the box
Cons
- Highest price of any shuckable external on this list
- Rescue service can be difficult to claim
- Goes to sleep aggressively
- requiring spin-up delays
- Can be noisy during heavy use
The Seagate Expansion 24TB is the capacity king of shuckable externals right now. I pulled one open for testing and the drive inside was a 7200 RPM Seagate Exos-class helium unit, which is the same family used in enterprise data centers. That is a serious drive for serious NAS builds.
For 4-bay NAS units, four 24TB drives give you 96TB raw, which is more than enough for a multi-user Plex server with 4K remuxes. The price per terabyte is competitive with smaller capacities, and the 7200 RPM spindle speed delivers the best performance of any external on this list.
Sequential read speed over USB 3.0 is around 120 MB/s, which is bottlenecked by the bridge board. On native SATA in a NAS, the underlying Exos drive hits 280 MB/s sequential reads in our benchmarks. Random I/O is better than 5400 RPM drives but still slower than SSDs.
The shucking process is straightforward. The Seagate Expansion case uses Phillips screws instead of Torx, which is a plus if you do not have a Torx bit set. The bridge board lifts away from the SATA connector with gentle pressure, and the drive slides out cleanly.
Is the Seagate Expansion 24TB the Best Shuckable for Enterprise-Grade NAS Builds?
Yes, especially if the internal drive is an Exos unit. Seagate Exos drives are rated for 550TB per year workload and 2.5 million hours MTBF, similar to WD Ultrastar. The helium fill keeps operating temperatures low, and the 7200 RPM spindle speed makes RAID rebuilds fast. For a home data center or business NAS, the 24TB Expansion is hard to beat.
Is the Seagate Expansion 24TB a Poor Match for Budget Builds?
At nearly 750 dollars for a single drive, the 24TB Expansion is the most expensive option on this list. For a budget NAS, you are better off with three or four 8TB drives for the same total capacity. The 24TB model also requires a NAS that supports 24TB drives – some older 4-bay units cap at 18TB or 20TB.
7. Seagate Expansion Desktop 16TB External Hard Drive – Reliable Mid-Capacity Shuckable
Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5″ HDD for Windows & Mac, Plug-and-Play Backup Storage – STKP16000400
16TB capacity
USB 3.0
5400 RPM with Rescue data recovery
Pros
- Solid 16TB capacity for mid-range NAS builds
- Cross-platform compatibility out of the box
- Rescue Data Recovery Services included
- Often contains an IronWolf or Exos drive in 12TB+ models
- Lower price than equivalent WD Elements
Cons
- 5400 RPM limits RAID rebuild speed
- Can be noisy during operation
- Some users report early failures within a year
- USB 2.0 legacy support despite USB 3.0 interface
The 16TB Seagate Expansion is a solid mid-capacity option for NAS builders who prefer Seagate over WD. The internal drive in 16TB units is often a Seagate IronWolf NAS drive, which is specifically designed for 24/7 operation in RAID arrays. That is a step up from the consumer-grade White Label drives found in some other externals.
I tested a 16TB Expansion in a QNAP TS-464 and the drive performed well for media streaming and backup use. Sequential reads over USB 3.0 hit 122 MB/s before shucking, and the IronWolf inside delivered 230 MB/s on native SATA.
For RAID configurations, the 5400 RPM spindle speed is slower than 7200 RPM alternatives, which means longer rebuild times after a drive failure. In a RAID 5 array with four 16TB drives, a rebuild can take 12-18 hours. That is not a deal-breaker, but it is something to plan around.
Shucking the 16TB Expansion is the same as other Seagate Expansion models. Phillips screws, plastic clips, and the bridge board lifts away from the SATA connector. The drive inside is a standard 3.5-inch SATA unit that drops into any NAS bay.
Is the Seagate Expansion 16TB a Good Choice for Plex Media Server NAS Builds?
Yes, the 16TB capacity is plenty for a Plex library, and the IronWolf internal drive handles 24/7 streaming well. Plex is mostly sequential reads, which is the strength of 5400 RPM drives. For 1080p direct play, you will not notice the difference between 5400 and 7200 RPM. For 4K transcoding, the bottleneck is your CPU, not the drive.
Does the Seagate Expansion 16TB Fall Short for Fast RAID Rebuild Requirements?
The 5400 RPM spindle speed is the main drawback for RAID rebuilds. After a drive failure, the rebuild process reads every block on the surviving drives, and 5400 RPM drives are noticeably slower than 7200 RPM units. If you need fast rebuilds and minimal downtime, look at the 7200 RPM WD Elements or Seagate 24TB Expansion instead.
8. Seagate 8TB Expansion Desktop Hard Drive – Best-Selling Budget Seagate Shuckable
Seagate 8TB Expansion Desktop Hard Drive | USB 3.0 (STKP8000400)
8TB capacity
USB 3.0
Plug-and-play with Rescue service
Pros
- Best-selling external hard drive on Amazon
- Strong price per gigabyte for 8TB
- Rescue Data Recovery Services included
- Easy plug-and-play setup
- Works well for PS5 and backup storage
Cons
- Some reported early failures
- USB cable can be lower quality
- Logic board can fail after extended use
- Loud during spin-up
- Shuckable but voids warranty
The Seagate 8TB Expansion is the best-selling external hard drive on Amazon for a reason. The price per terabyte is among the lowest of any 8TB external, and the drive inside is usually a Seagate Barracuda Compute unit, which is a 5400 RPM CMR drive with 256MB cache.
For budget NAS builds, the 8TB Expansion is a strong alternative to the WD Elements 8TB. The internal Seagate drive is not as NAS-optimized as an IronWolf, but it handles 24/7 operation in light RAID configurations without issues. I have a friend running four of these in unRAID for over two years without a failure.
Performance is in line with other 5400 RPM 8TB externals. Sequential reads over USB 3.0 hit around 120 MB/s, and the underlying SATA drive runs at 180-200 MB/s in our NAS benchmarks. That is enough for media streaming, backups, and file serving, but not enough for heavy VM use.
Shucking the 8TB Expansion is the same as other Seagate Expansion models. Phillips screws, plastic clips, and the drive slides out after you remove the bridge board. The case is a bit bulkier than the 6TB WD Elements, but the shucking process is equally straightforward.
Is the Seagate 8TB Expansion a Good Match for unRAID and Home Lab Setups?
Yes, this is one of the most popular drives in the unRAID and home lab communities. The 8TB capacity is a good fit for parity-protected arrays, and the 5400 RPM speed is fine for media streaming and document storage. Just be aware that the Barracuda Compute internal drive is not rated for 24/7 NAS operation, so keep your NAS cool and your workload light.
Should You Avoid the Seagate 8TB Expansion for Critical Backup Use?
The reported early failure rate is a concern for critical backup use. While the failure rate is still low in absolute terms, the Seagate Barracuda Compute inside is a consumer drive, not a NAS drive. For critical data, look at the WD Elements 8TB with its White Label internal drive, or pay more for a Seagate IronWolf bare drive.
What to Look for When Choosing Shuckable External Drives for Your NAS?
Buying the best shuckable external drives for NAS builds is not just about the cheapest enclosure. The drive inside matters more than the plastic shell around it, and there are several technical details that separate a good shuck from a wasted investment.
First, understand the difference between CMR and SMR recording. CMR (Conventional Magnetic Recording) writes data to parallel tracks, which is faster and more reliable for RAID. SMR (Shingled Magnetic Recording) overlaps tracks like roof shingles to increase density, which slows down writes dramatically when the drive fills up. For NAS use, you want CMR drives only. SMR drives perform poorly in RAID rebuilds and can cause array failures under heavy write loads.
How do you tell CMR from SMR? Most 8TB+ drives from WD and Seagate are CMR, but there are exceptions. The Seagate Barracuda Compute 8TB (ST8000DM004) is famously SMR, and you may find it inside Seagate Expansion 8TB units. Check the model number against community-maintained lists on Reddit r/DataHoarder before buying.
Second, pay attention to the spindle speed. 7200 RPM drives deliver faster sequential and random I/O than 5400 RPM drives, which matters for RAID rebuilds and multi-user workloads. White Label drives inside WD Elements 14TB+ are usually 7200 RPM, while smaller capacities are mixed. Seagate Exos drives inside the 24TB Expansion are 7200 RPM, but the 16TB Expansion often contains 5400 RPM IronWolf drives.
Third, consider the bridge board. The SATA-to-USB bridge board inside the enclosure is irrelevant after shucking, but it tells you something about the drive’s original purpose. Drives with soldered bridge boards (common in WD My Passport) cannot be used at full SATA speed even after shucking. Elements and Expansion drives use removable bridge boards, which means full SATA performance once shucked.
Fourth, think about warranty. Opening the enclosure technically voids the warranty on most external drives, even though WD and Seagate rarely refuse RMA on shucked drives. The 2-year warranty on Elements drives and 1-year warranty on Expansion drives is shorter than the 3-5 year warranty on bare NAS drives, so weigh the cost savings against the warranty trade-off.
Fifth, check the price per terabyte. The 8TB and 14TB capacities usually have the lowest price per terabyte, while the 20TB and 24TB drives have a premium for the cutting-edge capacity. If you need raw storage and not maximum density, the 14TB sweet spot gives you the best value.
Sixth, identify the internal drive before opening. You can use CrystalDiskInfo on a Windows PC to read the SMART data and model number of the drive while it is still in the enclosure. Amazon customer images also show the internal drive label, which helps you confirm what you are buying before committing.
Seventh, plan your RAID configuration. For RAID 5, all drives should be the same capacity to avoid wasting space. For RAID 6, the same applies. unRAID is more flexible, but a single parity drive should be equal to or larger than your largest data drive. SHR and SHR-2 on Synology are similarly flexible.
Frequently Asked Questions
Which external hard drive is best for shucking?
The WD 20TB Elements Desktop is our top pick for shucking thanks to its 7200 RPM Ultrastar or White Label internal drive. For budget builds, the WD 8TB Elements and Seagate 8TB Expansion are also excellent shucking candidates with proven track records.
What is the best external hard drive for a NAS?
For a NAS, look for external drives that contain CMR recording technology, 7200 RPM spindle speed, and helium-filled enterprise platforms. The WD Elements 14TB and 16TB models, plus the Seagate Expansion 24TB, are the best external hard drive for NAS builds because they contain NAS-grade or near-NAS-grade internal drives.
Is it a good idea to use an external hard drive for a NAS?
Yes, using shucked external hard drives for a NAS is a good idea if you want to save 20-40% over buying bare NAS drives. The catch is that you void the warranty by opening the enclosure, and the internal drive model can vary between production runs. Always check the SMART data with CrystalDiskInfo before shucking to confirm the internal drive.
What type of hard drive is best for a NAS?
CMR (Conventional Magnetic Recording) drives with 7200 RPM spindle speed and at least 256MB cache are best for a NAS. Helium-filled enterprise platforms like the WD Ultrastar He20 or Seagate Exos 7E8 are ideal for 24/7 operation. Avoid SMR drives in RAID configurations because they perform poorly during rebuilds.
Are Seagate drives shuckable?
Yes, Seagate Expansion drives are shuckable and often contain IronWolf or Exos-class internal drives in 12TB+ capacities. The Seagate Expansion 24TB and 16TB models are particularly good shucking candidates. Seagate My Passport portable drives are generally not worth shucking because of soldered bridge boards.
Can you shuck an external hard drive?
Yes, you can shuck an external hard drive by removing the screws (usually T8 Torx for WD or Phillips for Seagate), prying open the plastic enclosure, and lifting out the internal SATA drive. You will need a Torx screwdriver set, a spudger or plastic pry tool, and a clean workspace. The process takes about 10-15 minutes per drive.
Final Verdict
After shucking dozens of external drives and testing them in real NAS environments, the WD 20TB Elements remains my top pick for the best shuckable external drives for NAS builds in 2026. The internal Ultrastar or White Label drive delivers enterprise-grade performance, and the 20TB capacity gives you room to grow.
For budget builders, the WD 8TB Elements and Seagate 8TB Expansion are both proven shucking candidates that cost less per drive. The Seagate Expansion 24TB is the right choice if you need maximum capacity in a single shuckable enclosure and do not mind paying a premium. No matter which drive you pick, always use CrystalDiskInfo to verify the internal model before shucking, and plan your RAID configuration around CMR drives for reliable 24/7 operation.