Warm tip:Graphics card compatibility: support for new graphics cards shipped after 2015 (Not support for old graphics cards shipped before 2014) Model: R3G series product Product Name: Graphics card external adapter board extension cable Motherboard compatibility: ITX/ motherboard, NUC, only supports M.2 NVMe interface Does not support M.2 SATA interface, does not support M.2 WiFi interface, does not support M.2 WWAN interface Bandwidth speed: PCIe3.0x4 (32G/s) Power Description: The model that supports the power supply is 12V/18A/220W power supply, or the standard ATX power supply. Please prepare or purchase the power separately. Cable length:50CM Model Number:R43SG Type:Extension Cable Colour:black Material:ABS Package Contents: 1 x Graphics card external adapter board extension cable 1 x Extension cable 1 x Installation bracket 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.