R3G laptop graphics card external to M.2 nvme PCIe 3.0/4.0x4 docking adapter

High-speed eGPU dock adapter that links an internal M.2 NVMe (PCIe x4) slot on a mini PC, laptop, or handheld to an external desktop graphics card.

Interface: M.2 Key-M NVMe slot (supports PCIe 3.0/4.0 x4 for high bandwidth and minimal performance loss compared to Thunderbolt)

Power Options: Supports a dedicated Dell DA-2 (180W/220W) 8-pin PSU or a standard ATX/SFX desktop power supply (400W+ recommended for robust GPUs).

Direct PCIe Speed: Because it hooks right into NVMe PCIe lanes, it avoids the heavy bottleneck of standard Thunderbolt/USB4 limits, though you must physically route the ribbon cable out of your chassis or case.

Slot Compatibility: Works strictly with M.2 NVMe slots—it does not support M.2 SATA, WiFi, or WLAN slots. 

Used for a year on my mini PC with external GPU to run local LLM models