







🚀 Elevate your eGPU game—because your laptop deserves a power boost!
The JMT M.2 M-Key to PCIe 4.0 x4 External Graphics Card Stand Bracket is a cutting-edge adapter designed for professionals and gamers seeking to expand their laptop or handheld device’s GPU and PCIe card capabilities. Compatible with Oculink and M.2 NVMe ports, it delivers Gen4 bandwidth speeds, supports high-wattage ATX/SFX power supplies, and features smart start/stop functionality for seamless integration. Ideal for those who demand desktop-level graphics performance on the go, this bracket requires an external power supply and Oculink cable, offering a modular, customizable expansion solution.
| ASIN | B0CRR7HMX5 |
| Best Sellers Rank | #352 in Computer Graphics Cards |
| Color | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (45) |
| Date First Available | January 8, 2024 |
| Item Weight | 11.3 ounces |
| Item model number | F51620 |
| Manufacturer | JMT |
| Package Dimensions | 8.07 x 4.02 x 1.65 inches |
| Special features | Unique Start/Stop Functionality |
S**H
Failed for dual gpu use.
Lack of information and could not find display. Very frustrating to use.
M**.
Inexpensive and works, I'm an Oculink believer now.
Works. Nice that includes the m.2 Oculink adapter. Be sure to buy an Oculink cable. I have a mini PC that only has (1) M.2 PCIE x4 4.0 slot, so I had to clone my MVME to SATA drive. Comparing FPS with games that struggled, it's apparent that Oculink > USB4/TB4. I wish this had a Power supply mount, and that the Oculink port was more accessible towards the bracket of the graphics card. The power switch on Auto didn't work, so I toggles it to On. Works like a charm. There's potential to 3d print an enclosure. Install notes: ONLY plug your power supply to the 24-pin connector (check/green). DO NOT connect power to the connectors circled in res (X/red). If your GPU requires PCI-E power, plug those power supply cables directly to the GPU power connectors (not dock).
E**N
A little sketchy, but it works
It worked more or less perfect. The only problem I had was the I couldn’t get it to turn on using the turn on with pc startup so I had to set it to be on 24/7, but that wasn’t exactly a problem for me since I intended for the pc to never turn off since it runs a whole bunch of servers
J**R
Occulink doesnt hot plug. You have to power this dock up before starting your rig.
My Pi5 now does 4k games.
D**P
Needs better documentation
I was able to get it working, but it really could use some assembly instructions. There are multiple power connectors and it would be nice to know which ones are mandatory, and which ones are optional. There are also a few design issues. The occulink connector is on the right side where most people would probably put their power supply. It would be better to have the connector come out of the back of the dock. The retention bracket angles away from the card, you have to flex it into place to secure the GPU to the dock. It would be nice if it fit properly without having to force it.
T**P
Excellent for the price, great quality.
Title says it all. The PCB doesn't feel cheap or flimsy. It comes with brackets and support to secure the PCB, GPU, and even remount mount the enclosure to something. (The mount also has magnetic feet which is really nice) The M.2 adapter included was also sturdy. It didn't feel flimsy. Compared to other cheaper options, this adapter picked up any GPU or PCIe expansion card installed over the others (including GPUs that ran solely off of PCIe lane power) where as competitors would fail detecting cards that didn't require external power. The added switches on the x16 part of the adapter is also a good touch, allowing you to force power the card or wait for PC detection before booting. Honestly, 10/10 adapter for the price.
C**S
Not happy with dock.
There is no instructions with the dock, nothing showing what GPU's are compatible with the dock. It work's, but only in test mode, it doesn't start up when laptop switches on, have to power it up before powering up the Laptop.
K**C
5 Stars! Worked right out of the box.
Works perfect with my RX 6800 XT. I have a Dell Optiplex 7070 SFF and low profile compatible video cards are limited. I upgraded the computer PSU to a HU365 (it has a pcie cable) and purchased a Dell D220P external power supply and PCIE X4 low profile card for the JMT M.2 Oculink. I plugged everything in and turned on the power. The computer recognized the GPU right away.
T**6
Was initially a little apprehensive about this - I needed more vram for diffusion models, and didn't have a fortune to spend on a new gaming pc (I have a not so old MSI Raider GE76 12UH, but with only 8gb of vram). I'd only read about epgu's, and managed to snag a second hand RTX 3090 at a reasonable price. I decided to take the plunge. I plugged it all together, and turned on with always on switch on (I should note I was using a different m2 oculink card in my laptop) and booted up. Immediately device manager sees a generic windows display adapter. Reinstalled drivers, now device manager sees a RTX 3090, but stopped with error 43. Did some googling, and found and ran the error 43 fixer - did it's thing, but still reported the same error. Uninstalled and reinstalled the driver cleanly - still no luck. Went back to basics - tried swapping out my old m2 card with the one supplied in the kit. Booted up, and voilà! RTX 3090 installed and working! Don't know if it was the card, the error fixer or a combination of both, but it now works flawlessly. I shut everything down, tried flipping the switch to auto power on when it detects power from laptop and guess what? that worked too! It might be cheap and cheerful, but I can testify it works, and am immensely relieved that it does as it saved me a fortune needing a new pc, or being stuck with a graphics card I can't use. Hooking it up together was simple - just connect the atx24 pin power connected to the board, your oculink cable in the relevant port, and your GPU into the PCI slot. Hook power up to your GPU directly. Not had a chance to test performance with games, but I'm sure people have already done that - I'm not using it for gaming, so the performance loss should be minimal and so far using flux it's a huge improvement on my own board 3080. It's a shame the kit doesn't provide a cable too, but the one shown in "people also bought this" section for another 20 quid worked just fine.
A**I
Fa il suo mestiere. Su schede modeste come 4060Ti non crea neppure particolari colli di bottiglia. 3dMark ottiene punteggi pari al bus gen4 8X nativo
G**K
Replaced a PCI-e 3.0 dock with this one to be able to run an RTX 3060 Ti. The other dock had a very cheap plastic main plate and only some extended screws for support. This one has far better build quality and is much more stable. The magnetic legs add the cherry on top. Put some metal plate underneath and it will stick there like being glued to the ground. The 3060 runs without issues reaching benchmark scores comparable or superior to desktop builds. The cabling of the 3.0 dock caused some WiFi intereference which yielded poor results (20-50Mbs on a 250Mbs WiFi card), the oculink cable doesn't cause anything like that. The only thing that I could mention as negative that the oculink cable's plastic cover is quite big and to be able to put it the backplate of the laptop back properly I had to remove it.
T**G
Läuft - An oculink anschließen - NVME Slot nutzen - geht Andere Bewertungen durchlesen.
A**.
Ich war ehrlich gesagt skeptisch und wollte mein Mini PC trotzdem als Spielrechner ausprobieren. Auf der Platine waren 2 m.2 Anschlüsse, einer davon frei. Also direkt ausprobiert. Zu meiner großen Überraschung lief es direkt einwandfrei. Grafikkarte angeschlossen, Netzteil über eine schaltbare Steckdose dazu geschaltet und mit einem Kabel verbunden. Gestartet, Treiber nachinstalliert, Kabel zum Monitor zusätzlich angeschlossen und... Es läuft. Ja, ist nicht ganz so günstig, aber es zahlte sich für mich absolut aus.
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