---
product_id: 604015681
title: "JMT M.2 M-Key to PCIE 4.0X4 External Graphics Card Stand Bracket Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handhelds (Dock-OC4)"
brand: "jmt"
price: "₩163723"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/604015681-jmt-m-2-m-key-to-pcie-4-0x4-external
store_origin: KR
region: South Korea
---

# PCIe 4.0 x4 Gen4 bandwidth Compatible with Oculink & M.2 NVMe devices Supports ATX/SFX/1U 24P power supply JMT M.2 M-Key to PCIE 4.0X4 External Graphics Card Stand Bracket Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handhelds (Dock-OC4)

**Brand:** jmt
**Price:** ₩163723
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your eGPU game — power, speed, and compatibility in one sleek bracket!

## Quick Answers

- **What is this?** JMT M.2 M-Key to PCIE 4.0X4 External Graphics Card Stand Bracket Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handhelds (Dock-OC4) by jmt
- **How much does it cost?** ₩163723 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/604015681-jmt-m-2-m-key-to-pcie-4-0x4-external)

## Best For

- jmt enthusiasts

## Why This Product

- Trusted jmt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek, Durable Design:** Robust metal and plastic build ensures a solid, tabletop-ready setup that fits compact GPUs securely.
- • **Smart Start/Stop Sync:** Automatically powers on/off with your host device, streamlining your workflow without manual toggling.
- • **Broad Device Compatibility:** Effortlessly expand your laptop or handheld’s capabilities via Oculink or M.2 NVMe ports—95%+ compatibility rate.
- • **Universal Power Flexibility:** Seamlessly integrates with ATX, SFX, or 1U power supplies (500W+ recommended) for stable, high-power delivery.
- • **Blazing Fast PCIe 4.0 x4 Speeds:** Unlock next-gen GPU and expansion card performance with ultra-low latency and max bandwidth.

## Overview

The JMT M.2 M-Key to PCIe 4.0 x4 External Graphics Card Stand Bracket is a high-performance adapter designed for laptops and handhelds with Oculink or M.2 NVMe ports. It supports PCIe 4.0 Gen4 speeds, enabling expansion of GPUs, network, sound, and capture cards. Compatible with ATX, SFX, and 1U power supplies (500W+), it features a durable metal/plastic build and smart start/stop functionality, making it an ideal solution for professionals seeking portable yet powerful external GPU setups.

## Description

JMT M.2 M-Key to PCIE 4.0X4 External Graphics Card Stand Bracket Compatible with Oculink / M.2 NVMe Laptop eGPU GDP Handhelds Product Description: 1, O culink adapter board, support devices with O culink port to expand PCIE card. 2, Support M.2 port, through the standard O culink extension cable to PCIE card. 3, Support expanding GPU graphics card, PCIE network card, PCIE sound card, PCIE capture card, etc. PCIE array card only supports X4 devices. 4, The maximum bandwidth speed is PCIE 4.0 X4 GEN4, backward compatible with GEN3. 5, Support ATX\SFX\small 1U power supply, the adapter board only needs to be inserted into the 24P power supply, the graphics card power supply is provided by other power supplies. Power supply should be 500W and above. 6, Support synchronous start and stop following the host, does not support hot-swap. 7, Only GDP handhelds with o culink ports have been successfully tested for compatibility, other hosts with O culink ports are still being collected. 8, The successful compatibility rate is 90% for laptops with M.2 ports, 95% for small hosts with M.2 ports, and 95% for other hosts. 9, This series of kit products do not include O culink extension cable, need to purchase separately. 10, This series of boxes do not support built-in power supply, and limit the size of the graphics card.

Review: Works well, solid build - Works well, and constructed well. I would opt for the one with power supply along with it, but to save a few bucks, rock solid unit.
Review: ok - not bad. Need smaller, two fan gpus for these docks and no oculink cable is included. Tight fit but that may protect gpu if you move it.

## Features

- Oculink-Compatible adapter board, support devices with O culink port to expand PCIE card.
- Support M.2 port, through the standard O culink extension cable to PCIE card.
- Support expanding GPU graphics card, PCIE network card, PCIE sound card,?PCIE capture card, etc. PCIE array card only supports X4 devices.
- Support ATXSFXsmall 1U power supply, the adapter board only needs to be inserted into?the 24P power supply, the graphics card power supply is provided by other power supplies.??Power supply should be 500W and above.
- This series of boxes do not support built-in power supply, and limit the size of the graphics card. (Do not include O culink extension cable)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRR7HMX5 |
| Additional Features | Unique Start/Stop Functionality |
| Best Sellers Rank | #529 in Computer Graphics Cards |
| Brand | JMT |
| Color | Black |
| Compatible Devices | Desktop, Laptops |
| Customer Reviews | 4.2 out of 5 stars 51 Reviews |
| Enclosure Material | Metal And Plastic |
| Global Trade Identification Number | 00783798005388 |
| Item Weight | 0.32 Kilograms |
| Manufacturer | JMT |
| Material | Metal And Plastic |
| Model Name | AMD Radeon RX 6800 XT |
| Model Number | F51620 |
| Mounting Type | Tabletop Mount |
| Special Feature | Unique Start/Stop Functionality |
| UPC | 783798005388 078379800538 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 |

## Product Details

- **Brand:** JMT
- **Color:** Black
- **Compatible Devices:** Desktop, Laptops
- **Mounting Type:** Tabletop Mount
- **Special Feature:** Unique Start/Stop Functionality

## Images

![JMT M.2 M-Key to PCIE 4.0X4 External Graphics Card Stand Bracket Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handhelds (Dock-OC4) - Image 1](https://m.media-amazon.com/images/I/51iEVpWlzmL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well, solid build
*by S***W on January 30, 2026*

Works well, and constructed well. I would opt for the one with power supply along with it, but to save a few bucks, rock solid unit.

### ⭐⭐⭐⭐ ok
*by M***A on February 10, 2026*

not bad. Need smaller, two fan gpus for these docks and no oculink cable is included. Tight fit but that may protect gpu if you move it.

### ⭐⭐⭐⭐⭐ Inexpensive and works, I'm an Oculink believer now.
*by M***. on January 25, 2025*

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).

## Frequently Bought Together

- JMT M.2 M-Key to PCIE 4.0X4 External Graphics Card Stand Bracket Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handhelds (Dock-OC4)
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**Shop now:** [https://www.desertcart.kr/products/604015681-jmt-m-2-m-key-to-pcie-4-0x4-external](https://www.desertcart.kr/products/604015681-jmt-m-2-m-key-to-pcie-4-0x4-external)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-09*