--- product_id: 642386460 title: "JMT Support External Graphics Card M.2 M-Key to PCIE 4.0X4, Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handheld (Dock-OC4)" brand: "jmt" price: "€ 117.41" currency: EUR in_stock: true category: "Jmt" url: https://www.desertcart.at/products/642386460-jmt-support-external-graphics-card-m-2-m-key-to store_origin: AT region: Austria --- # PCIe 4.0 x4 Gen4 bandwidth 90%+ compatibility with M.2/Oculink devices Supports ATX/SFX 500W+ power supply JMT Support External Graphics Card M.2 M-Key to PCIE 4.0X4, Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handheld (Dock-OC4) **Brand:** jmt **Price:** € 117.41 **Availability:** βœ… In Stock ## Summary > πŸš€ Elevate your laptop’s power game with JMT’s ultimate external GPU adapter! ## Quick Answers - **What is this?** JMT Support External Graphics Card M.2 M-Key to PCIE 4.0X4, Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handheld (Dock-OC4) by jmt - **How much does it cost?** € 117.41 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/642386460-jmt-support-external-graphics-card-m-2-m-key-to) ## 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 - β€’ **Smart Sync Start/Stop:** Effortless power management with synchronous start/stop following your host device, optimizing energy use. - β€’ **Flexible Power Support:** Works with standard ATX/SFX power supplies 500W and above, ensuring stable and reliable GPU power delivery. - β€’ **Multi-Device Expansion Hub:** Supports GPUs, network, sound, and capture cards β€” transform your device into a powerhouse workstation. - β€’ **Blazing Fast PCIe 4.0 x4 Interface:** Unlock next-gen GPU and expansion card speeds with Gen4 bandwidth, future-proofing your setup. - β€’ **Universal Oculink & M.2 Compatibility:** Seamlessly expand your laptop or handheld’s capabilities with 90%+ tested device compatibility. ## Overview The JMT Support External Graphics Card M.2 M-Key to PCIe 4.0 x4 adapter enables high-speed expansion of GPUs and other PCIe cards via Oculink or M.2 NVMe ports. Compatible with laptops and handhelds like the GDP series, it supports PCIe Gen4 bandwidth, requires a 500W+ ATX/SFX power supply, and offers over 90% compatibility with tested devices. Ideal for professionals seeking to supercharge their portable setups with desktop-grade graphics and expansion capabilities. ## 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. ## Features - Oculink compatible adapter card, supports devices with O culink port to expand PCIE card. - Support M.2 port, through standard O culink extension cable to PCIE card. - Support expansion 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 card only needs to be inserted into the?24P power supply, graphics card power is provided by other power supply.? Power supply must be 500W and above. - This series of boxes does not support built-in power supply and limits the size of the graphics card. (Not include the O culink extension cord) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CRR7HMX5 | | Additional Features | Unique Start/Stop Functionality | | Best Sellers Rank | #117,582 in Computers ( See Top 100 in Computers ) #831 in Graphics Cards | | Brand | JMT | | Color | Black | | Compatible Devices | Desktop, Laptops | | Compatible Phone Models | Universal | | Customer Reviews | 4.2 4.2 out of 5 stars (60) | | Enclosure Material | Plastic Metal | | Global Trade Identification Number | 00783798005388 | | Item Weight | 0.32 Kilograms | | Manufacturer | JMT | | Mfr Part Number | F51620 | | Model Name | AMD Radeon RX 6800 XT | | Model Number | F51620 | | Mounting Type | Tabletop Mount | | UPC | 783798005388 078379800538 | ## Product Details - **Brand:** JMT - **Colour:** Black - **Compatible devices:** Desktop, Laptops - **Compatible phone models:** Universal - **Mounting type:** Tabletop Mount ## Images ![JMT Support External Graphics Card M.2 M-Key to PCIE 4.0X4, Compatible with Oculink/M.2 NVMe Laptop eGPU?GDP Handheld (Dock-OC4) - Image 1](https://m.media-amazon.com/images/I/51iEVpWlzmL.jpg) ## Available Options This product comes in different **Size** options. ## 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) - chenyang SFF-8611 Cable OCuLink PCIe PCI-Express 4.0 SFF-8611 4i Male to SFF-8611 Male Data Extension Cable 50cm for eGPU GPD Win Max2 External Graphics Card & SSD - CY Cable OcuLink PCIe PCI-Express SFF-8611 4i to OcuLink SFF-8611 SSD Data Active Cable 50cm --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/642386460-jmt-support-external-graphics-card-m-2-m-key-to](https://www.desertcart.at/products/642386460-jmt-support-external-graphics-card-m-2-m-key-to) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-09-18*