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 The silk screen/appearance may be different due to different batches, but it will not affect the use; the actual product may have color difference due to different light or display Package Contents: 2 x eGPU OCuLink GPU Dock