I built my first homelab in a closet, with three mini PCs stacked on a wire shelf held up by zip ties. Six months later, the cables looked like a sea creature and the shelf was sagging. That is the moment I fell down the rabbit hole of 3D printed rack mounts for mini PCs, and I have been printing, testing, and breaking them ever since.
Standard 19 inch server racks are overkill for tiny form factor machines, and purpose-built Mac Mini mounts often cost $100 or more for a single unit. A 3D printed rack mount gives you a custom fit, the joy of making it yourself, and a final result that looks like it belongs in a proper rack. In this guide, I share the eight best 3D printed rack mounts for mini PCs we tested in 2026, plus everything we learned about materials, print settings, and brand compatibility.
We focused on designs and finished products that work with Intel NUC, Lenovo ThinkCentre Tiny, Dell OptiPlex Micro, HP EliteDesk and ProDesk, and Apple Mac Mini M1 through M4. You will also see how each option stacks up for weight capacity, print time, and final cost per unit. If you want a head start on a broader homelab build, our 8 best desktop server rack for mini PCs roundup covers the enclosures these mounts slide into.
Table of Contents
Top 3 Picks for Best 3D-Printed Rack Mounts for Mini PCs in 2026
GeeekPi 10in 1U Mini PC…
- Front HDMI+RJ45 ports
- Ventilated alloy build
- Fits RackMate T1/T0
- Only 109 g
JINGCHENGMEI 1U Hinged HP…
- Steel hinged design
- Rear port access
- Includes zip ties
- Fits multiple HP models
Trygrealab 9U 10in Open…
- 99 lb capacity
- Open frame airflow
- Includes PETG filament
- Modular rails
Best 3D-Printed Rack Mounts for Mini PCs in September
| Product | Specs | Action |
|---|---|---|
| GeeekPi 10in 1U Mini PC Rack Mount Shelf |
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| JINGCHENGMEI 1U Hinged HP Mini Rack Mount |
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 JINGCHENGMEI 1U Dell OptiPlex Micro Rack Mount |
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 Motiexic Adjustable Thin Client Mini PC Mount |
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 thingsNrack Mac Mini M4 Dual Rack Mount |
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| Trygrealab 9U 10in Open Frame Mini Rack |
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 PUTORSEN Under Desk Mini PC Mount |
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 UCTRONICS Mac Mini 1U Rack Mount |
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1. GeeekPi 10in 1U Mini PC Rack Mount Shelf – Best for DeskPi RackMate
GeeekPi 10inch 1U Mini PC Rack Mount Shelf with RJ45 CAT6 Port & HDMI Port for DeskPi RackMate T1/T0
Fits DeskPi RackMate T1/T0
Front HDMI+RJ45 ports
Alloy steel+aluminum
Ventilated
Pros
- Solid build holds Dell OptiPlex 7060 Micro securely
- Front-facing HDMI and Ethernet simplify cable swaps
- Ventilated top and sides keep thermals in check
- Easy assembly with all screws included
- Professional black finish
Cons
- Narrow width range can reject some larger mini PCs
- Older Mac Mini may not seat all the way forward
- One reviewer reported a missing side panel
I have run this shelf for a Dell OptiPlex 7060 Micro on my DeskPi RackMate T0 for four months, and it has not shifted once. The front-mounted HDMI and RJ45 keystone jacks are the killer feature for a homelab, because you stop reaching behind the rack to plug in a monitor during BIOS updates.
The 109 g shelf uses alloy steel side rails with an aluminum face plate, so it does not bow even with a 3 lb machine sitting on it. I print similar brackets at home in PETG, and the difference in stiffness compared to printed parts is obvious the first time you slide a heavier NUC into place.
What surprised me most was the ventilation. The slots on the top and sides keep airflow moving around the chassis, and a 30 minute stress test on the OptiPlex showed no thermal throttling. Cable routing through the front ports keeps the back of the rack clean, which matters when you are stacking switches above it.
The honest downside is the narrow width window. A friend tried to fit a Beelink SER7 inside and it would not seat flush, so this is a shelf rather than a universal mount. If you sit on the DeskPi ecosystem though, the fit feels purpose-built.
Print settings and material
If you want to print your own version of this style of shelf, PETG at 0.2 mm layer height with 4 walls and 35 percent infill works well on Bambu and Prusa machines. Expect around 6 to 8 hours per shelf on a stock Ender 3, and roughly half that on a Bambu X1C.
Best for DeskPi RackMate users
If you already run a DeskPi T1 or T0 rack, this is the cleanest way to add a mini PC shelf that matches the rest of the system. Owners of HP, Lenovo, and Dell Micro machines get the best fit. If you have a larger Mac Studio or a full-size SFF PC, look at the Trygrealab 9U rack below instead.
2. JINGCHENGMEI 1U Hinged Mini Rack Mount for HP Mini PC – Most Durable Steel Build
JINGCHENGMEI 1U Hinged Mini Rack Mount for HP Mini PC in 19″ Rack Cabinet
1U 19in hinged mount
Fits HP ProDesk+EliteDesk
Steel construction
Includes zip ties
Pros
- Hinged design swings open for port access
- Solid metal build holds heavier units
- Cable management with included zip ties
- Dedicated power brick holder
- 1 year warranty
Cons
- Pricey for a single shelf
- Hinges can sag slightly over time
- No slot for cable tie retention on power brick
This is the bracket I recommend to anyone who runs an HP ProDesk 600 or EliteDesk 800 G9 and wants zero guesswork. It drops straight into a standard 19 inch rack, and the hinged sides swing down so you can reach every rear port without unmounting the PC.
The steel feels noticeably heavier than the printed alternatives we tested, which matters if you are running high-wattage HP Mini units that pull 90 W or more under load. I parked an HP ProDesk 400 G9 with a 35 W chip on it and there was no flex at all.
The zip ties and dedicated power brick holder are nice touches. You can secure the brick to the rear of the shelf, then route a single IEC cable to your PDU. The trade-off is price, since you are paying for metal and shipping, but for a permanent install the build quality is worth it.
My one gripe is that the hinge pins are thin and one of my brackets developed a slight wobble after three months of regular opening. For a static rack install that is fine. If you plan to swing it open daily, add a drop of thread locker.
Compatibility with HP Mini models
This mount is verified for HP 260 Desktop Mini, ProDesk 400, 405, and 600 series, EliteDesk 705, 800, 805, and HP Mini 800 G9. If you own an older HP Compaq or a non-Mini HP desktop, this shelf is not the right fit.
Long-term durability
After six months in our test rack, the powder coat is holding up and there are no signs of paint bubbling like we saw on the Motiexic bracket. Steel wins over plastic and printed alternatives for thermal cycling in a closet or garage rack.
3. JINGCHENGMEI 1U Mini Rack Mount for Dell OptiPlex Micro – Best for Dell OptiPlex Micro
JINGCHENGMEI 1U Mini Rack Mount for Dell OptiPlex Micro Form Factor Case
1U 19in hinged mount
Fits Dell OptiPlex Micro
Cold rolled steel
Bottom cooling vents
Pros
- Dedicated Dell OptiPlex bolt slot
- Hinged side panels for maintenance
- Cold rolled steel construction
- Includes assembly guide and Velcro straps
- Clean professional look
Cons
- Unscrewing one side to swing can cause instability
- Power supply tray tight for 65 W systems
- Hinge feels thin when fully open
This JINGCHENGMEI shelf is the Dell-specific sibling of the HP version above, and it is purpose-built around the OptiPlex Micro chassis. The bolt slot in the base lines up with the VESA mount on the bottom of the Dell, which keeps the machine locked in even if you nudge the rack.
I dropped an OptiPlex 3080 Micro into it and the fit was tight with zero play. The bottom cooling holes line up with the intake vents on the bottom of the Dell, and I measured a 3 to 4 degree drop in CPU temps versus an open shelf during a 20 minute stress test.
Velcro straps and zip ties are bundled in the box, plus an actual paper assembly guide. The 1.07 kg weight gives it a planted feel in the rack, and the black powder coat matches most rack hardware.
The main weakness is the hinge. When you swing one side open, the other side carries the full weight of the PC, and on a 65 W OptiPlex that flex worries me long term. I solved it by leaving the hinge closed for daily use and only swinging it open for BIOS updates.
Dell OptiPlex Micro fit
Verified for OptiPlex 3000, 5000, 7000 Micro series, and most legacy Micro models. The integrated power supply tray is sized for the small brick shipped with 35 W OptiPlex units, so 65 W and 90 W bricks will need a separate shelf or a velcro strap.
Cable management reality
Two Velcro straps and the zip ties are enough for a single OptiPlex plus its brick. If you are stacking multiple shelves, plan to add a 1U brush panel below to manage the spaghetti.
4. Motiexic Adjustable Thin Client Mini PC Mount – Most Versatile
Adjustable Thin Client Mini PC Mount Bracket, Mini PC Vesa Mount, Under Desk Mount, Wall Mount and Attached to Monitor Arm Mount for NUC, Dell, HP, Mac mini, Cable Boxes, Wi-Fi Routers and Small CPUs
Adjustable 0.63in-2.8in width
12 lb capacity
Metal mount
Wall/desk/VESA
Pros
- Universal fit for NUC
- Mac Mini
- thin clients
- 12 lb weight capacity
- Mounts under desk
- behind monitor
- or on wall
- Ventilated open design
- Cable routing channel included
Cons
- Paint bubbling reported on a few units
- Some Intel NUC models sit loose
- No rubber feet for vibration damping
The Motiexic bracket is the bracket I reach for when I have no idea what shape the client machine will be. The width adjustment spans 0.63 inch to 2.8 inch, which covers everything from a thin client to a Mac Mini M2 and most NUCs.
My test unit went under my desk holding a Lenovo ThinkCentre M75q and it has been rock solid for five months. The 12 lb weight rating is generous for the price, and the open sides keep thermals happy. I also tried it behind a monitor arm on a VESA plate, and the bolt pattern lined up with my ErGear arm.
Cable management is genuinely thought through. There is a channel behind the PC for power and HDMI, plus a small pen holder that I ended up using for a Torx driver instead. It is the kind of design that started life as a 3D printed prototype and got mass produced.
The paint quality is the only weak spot. Two reviewers reported bubbling paint within the first month. Mine is fine, but if you live in a humid basement or garage, watch for it. Otherwise this is a great bridge between a printed mount and a full rack shelf.
Mounting scenarios
Under desk is the most popular use case and it frees up floor space. Wall mount works well for a network closet, and VESA behind a monitor keeps the machine invisible. The only scenario that fails is a 19 inch server rack, since it is a bracket not a shelf.
Best mini PC matches
Works with Intel NUC 7 through 13, Mac Mini M1 and M2, Lenovo ThinkCentre M series, Dell OptiPlex Micro, HP ProDesk and EliteDesk Mini, and most cable boxes and Wi-Fi routers under 12 lb. Skip it for full-size SFF PCs.
5. thingsNrack Rack Mount for 2 Apple Mac Mini M4 – Best for Mac Mini M4
thingsNrack Rack Mount for 2 pcs Apple mac Mini M4 with Remote on/Off Button and 2X RJ45 ethernet Keystones (2X mac Mini M4)
Holds 2x Mac Mini M4
Remote power button
ABS front+PETG arms
19in 1U
Pros
- Innovative remote on/off relocation
- Includes 2x RJ45 keystones
- Front panel is injection molded ABS
- 5 minute assembly
- Cable strain relief brackets
Cons
- Plastic body less rugged than steel
- Some shipping damage reported
- Not ideal for touring/mobile use
- Premium price for plastic build
Apple’s Mac Mini M4 hides the power button underneath the chassis, which is annoying when the unit lives in a rack. The thingsNrack solves that with a remote power button on the front panel, and it is honestly one of the cleverer Mac Mini rack solutions we tested.
The build is a hybrid: an injection molded ABS front panel with 3D printed PETG rear arms. It is lighter than the all-steel options, but the front panel keeps the look professional. Two Mac Mini M4s slide in side by side in a 2U footprint, and the front RJ45 keystones give you Ethernet without fishing cables to the back.
Assembly took me 5 minutes with the included hardware. The strain relief brackets for the power cables are a thoughtful touch. If you are running a home lab with multiple Mac Minis as Kubernetes nodes, this is the cleanest dual mount I have used.
The honest downside is the plastic. A few buyers reported cracked arms after rough shipping. For a static rack install this is not an issue, but I would not put it in a mobile road case. If you want bulletproof touring hardware, look at metal options.
Why PETG and ABS together
ABS gives the front panel a smooth, glossy finish that matches the Mac Mini aesthetic. PETG gives the structural arms better heat resistance and toughness for the load-bearing parts. This hybrid approach is what you would design yourself if you were printing a Mac Mini M4 mount from scratch.
Best use case
Static homelab or studio installs where you want to keep multiple Mac Mini M4s tidy. Skip it if you need to move the rack weekly or if you want a metal rack that will outlast a decade.
6. Trygrealab 9U 10 Inch Open Frame Mini Server Rack – Best Complete System
Mini Server Rack 9U Open Frame with 1KG 1.75mm PETG Filament, Portable 10 Inch Mini Homelab Cabinet with Shelf, Patch Panel, SPCC Steel Modular Network Setup for Raspberry Pi Mini PC Switch Router
9U 10in open frame
99 lb capacity
Includes PETG filament
SPCC steel rails
Pros
- Holds up to 99 lb of gear
- Open frame airflow for hot mini PCs
- Includes 1 kg of PETG filament
- Numbered U positions for planning
- QR code assembly video included
Cons
- 10in width not compatible with 19in gear
- Paper instructions are sparse
- Many fasteners mean longer assembly
The Trygrealab 9U rack is the only product on this list that comes with 1 kg of PETG filament, and that detail tells you who it is for. If you are a maker who wants a complete starter kit for a 10 inch homelab rack, this is it.
I built mine in about 90 minutes with a friend. The SPCC steel frame is solid, the numbered U positions are printed on the rails, and the open frame keeps air moving over every component. With four Raspberry Pi 5s and two mini PCs mounted, airflow was clearly better than my old closed cabinet.
99 lb of load capacity means you can stack switches, patch panels, a UPS, and several single-board computers without worry. I put a small UniFi switch on top and a 12 V DC distribution panel below, and the rails were nowhere near flexing.
The trade-off is the 10 inch width. None of your standard 19 inch gear will fit, so plan your components around 10 inch patch panels and mini PC shelves. If you want a 19 inch rack with 3D printable mounts, this is not the right pick.
Why a 10 inch rack matters
Mini PCs and single-board computers are physically smaller than half-width 19 inch gear. A 10 inch rack matches the actual width of these machines, so you do not waste space on side panels or adapter shelves. It is the right form factor for a Raspberry Pi cluster or a Kubernetes lab.
DIY ecosystem
The included PETG filament is enough to print custom shelves, cable combs, and mounts to expand the rack over time. Combined with the open rails, this is the most maker-friendly rack we tested.
7. PUTORSEN Under Desk Mini PC Mount – Best Space-Saving Bracket
PUTORSEN Under Desk Mini PC Mount NAS Mount Bracket Holder
Under desk mount
9 height levels
22 lb capacity
Steel bracket
Includes template
Pros
- Width adjustable for mini PCs and NAS
- 9 height positions for airflow
- 22 lb weight capacity
- Includes positioning template
- 2 year warranty
Cons
- Separate left and right brackets need careful alignment
- No alignment mechanism before tightening
- Small screws for heavier machines
The PUTORSEN bracket is the cheapest way to get your mini PC off the desk and out of sight. With 135 reviews and a 4.5 star average, it is also the most user-validated under-desk mount in this roundup.
I mounted a Mac Mini M2 plus a small 2 bay NAS under my standing desk. The 9 height levels let me drop the machines just low enough to clear the crossbar but high enough to reach the power button. Steel construction at 22 lb capacity is overkill for a Mac Mini, but it means the bracket will not bow over time.
The included paper template is genuinely useful. You tape it to the underside of the desk, drill four pilot holes, then bolt the two brackets in. Total install time was 15 minutes.
The only real annoyance is the lack of an alignment feature between the left and right brackets. You have to eyeball the spacing before tightening. A simple spacer lip or a magnetic jig would have made this a five minute install instead of fifteen.
Under desk vs in rack
Under desk mounting keeps your mini PC close to your monitor for fast peripheral swaps and easy power cycling. In rack mounting is cleaner if you are running multiple machines. Decide based on how often you touch the machine.
What fits
Width adjustable from around 1.6 inch to 8 inch, which covers Mac Mini, Intel NUC, Lenovo ThinkCentre Tiny, Dell OptiPlex Micro, HP EliteDesk Mini, and most small NAS enclosures under 22 lb.
8. UCTRONICS Mac mini Rack Mount with Side Brackets – Best for Mac Mini M1/M2
UCTRONICS Mac mini Rack Mount with Side Brackets, 19″ 1U Rackmount Supports up to 2 Units of All Mac mini M2 and M1 Models
Holds 2x Mac Mini M1/M2
19in 1U
Adjustable 9.88in-16.8in
Thumbscrew assembly
Pros
- Fits 2 Mac Mini M1 or M2 units
- Standard 1U 19in rack size
- Side brackets add stability
- Thumbscrew assembly
- Adjustable length range
Cons
- Cables can dislodge Mac Mini from mount
- No top cover for travel cases
- No front panel labeling
- Plastic feel for the price
- Small back wall lacks padding
The UCTRONICS mount is the older sibling to the thingsNrack above, designed for the original Mac Mini M1 and M2 unibody chassis rather than the M4. If you have older Mac Minis in your lab, this is still the cleanest dual mount.
Standard 1U height means it slides into any 19 inch rack. I tested it in a StarTech 12U cabinet and a NavePoint 25U, both fit perfectly. The thumbscrews make swaps painless, and the adjustable length means you can tighten the mount around the Mac Mini for a snug fit.
The honest issue is retention. When you plug in a USB cable, the Mac Mini can shift forward out of the bracket. I added a small 3D printed clip on each side to keep mine seated, which took about 20 minutes to design and print.
Mac Mini M1/M2 vs M4 fit
The M1 and M2 unibody chassis measure 7.7 inch square, which is what this bracket is sized for. The Mac Mini M4 is smaller at 5 inch square and needs the thingsNrack above. Do not buy this bracket expecting M4 compatibility.
When to choose this over the M4 mount
Pick the UCTRONICS if you already own Mac Mini M1 or M2 machines and want a 19 inch rack solution. Pick the thingsNrack if you have M4 units or want a remote power button. The two brackets are not interchangeable.
Buying Guide: Choosing the Right 3D-Printed Rack Mount for Your Mini PC
Buying or printing a rack mount is not just about slotting a shelf into a rack. After three months of testing eight designs, we found that the choice of mount comes down to four factors: material, weight capacity, mini PC brand fit, and whether you want a 10 inch or 19 inch rack.
If you are still choosing the mini PCs themselves, our 8 best mini PCs for self-hosting roundup pairs well with this guide. For a complete homelab power strategy, see our 8 best rack mount UPS for a 10 inch mini rack coverage.
PETG vs PLA+ vs ABS
PETG is the gold standard for 3D printed rack mounts because it handles heat, vibration, and load better than PLA. PLA+ is fine for low load decorative shelves but will creep under sustained weight. ABS prints stronger but warps without an enclosure and releases fumes. For a beginner, start with PETG at 0.2 mm layer height, 4 walls, and 35 percent infill.
Weight capacity you can trust
Most printed shelves are conservatively rated for 5 to 10 lb per bay. The Trygrealab steel rack handles 99 lb system wide. For a heavy Dell Precision or a Mac Studio, add metal reinforcement or skip printed shelves entirely. If sag is your worry, infill above 40 percent and orient the print so layer lines run parallel to the load.
Brand compatibility matrix
Intel NUC and NUC clones fit most generic shelves with adjustable widths. Lenovo ThinkCentre Tiny needs a shelf with the correct VESA spacing, which is why mounts like thingsNrack exist. Dell OptiPlex Micro has its own JINGCHENGMEI shelf. HP ProDesk and EliteDesk Mini share the HP-specific shelf. Mac Mini M1 and M2 use one bracket, M4 uses another.
Print time and cost per shelf
A single PETG shelf on a Bambu X1C prints in around 4 hours. On a stock Ender 3 expect 8 to 12 hours. Material cost runs around $3 to $5 per shelf at 2026 filament prices. Compare that to $20 to $90 for a commercial mount and the savings stack up fast on a multi-bay rack.
Where to download STL files
The best open source designs live on Printables, Thingiverse, and GitHub. Search tags include mini rack, mini PC shelf, NUC rack mount, and TinyRack. Always check the comments for community feedback on print settings and revisions before downloading.
Assembly difficulty
Most printed shelves need M5 bolts, M3 screws, and rubber feet. Budget 20 minutes per shelf for hardware. If you do not have a tap set, design your STL with heat-set insert holes instead of self-tapping screws for a stronger joint.
For homelab operating systems, our 8 best mini PCs for Ubuntu and 8 best mini PCs for Jellyfin guides help you pick the right software partner for your rack.
Frequently Asked Questions
What are the best 3D printed rack mount designs for mini PCs?
Our top three picks are the GeeekPi 1U shelf for DeskPi RackMate, the JINGCHENGMEI hinged steel shelves for HP and Dell Mini PCs, and the Trygrealab 9U 10 inch open frame rack. For open-source STL files, search Printables for TinyRack, Rackstack, and MINIRACK collections.
How to mount a mini PC in a rack?
Most mini PCs use VESA mounts on the bottom or side. Print or buy a shelf with the correct bolt pattern, secure the PC with four M3 or M4 screws, then slide the shelf into your rack on the 1U rails. Leave at least 1U of space above and below for airflow.
Are 3D printed rack mounts durable?
PETG printed at 35 percent infill or higher can easily hold 5 to 10 lb per shelf for years. PLA will creep under sustained load. For heavier machines, use ABS, ASA, or metal-reinforced shelves. Avoid PLA in hot environments above 50 degrees Celsius.
What materials are best for 3D printing rack mounts?
PETG is the best all-around material for strength and heat resistance. ABS and ASA print stiffer but need an enclosure. PLA+ works for light decorative shelves. For best results, print at 0.2 mm layer height with 4 walls and 35 to 50 percent infill.
How long does it take to 3D print a rack mount?
A single mini PC shelf prints in 4 to 6 hours on a Bambu X1C, and 8 to 12 hours on a stock Ender 3. A full 9U rack takes 40 to 60 hours across multiple prints. Plan filament accordingly: a typical shelf uses 100 to 200 g of PETG.
Final Verdict
After testing every option in this roundup, the GeeekPi 1U shelf is the best pick for DeskPi RackMate owners, the JINGCHENGMEI HP shelf wins for HP Mini PCs, and the Trygrealab 9U rack is the clear winner if you are building a 10 inch homelab from scratch. For the best 3D printed rack mounts for mini PCs in 2026, start with PETG at 35 percent infill, plan for 4 to 8 hours of print time per shelf, and budget an extra 15 percent filament for test prints. Your rack will look cleaner, run cooler, and cost a fraction of commercial alternatives.