Oculink is an interface transferred from the NVME solid-state drive slot of the computer motherboard. NVME uses a pure PCIe channel, so the Oculink external graphics card dock also uses a PCIe channel with little performance loss. Compared with the traditional Thunderbolt transfer solution, Oculink's effective bandwidth can reach 64Gbps in the case of PCIe 4.0 x4, far exceeding the Thunderbolt solution. Product name:Oculink to PCIe x16 eGPU Adapter Product model: F9G-BK7 Transferspeed:PCIe 4.0 x4, gen4, 64G/bps (Max.) Application: eGPU for NUC / ITX / STX / Notebook PC Friendly reminder: Oculink does not support hot swapping Product use: For external graphics cards or other PCIe devices Power supply description: Supports standard ATX 500W or above power supply, the buyer needs to prepare the power supply Colour:Black Material:PCB+Metal Package Contents: 1 x eGPU OCuLink GPU Dock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.