Product Name: External Graphics Card Adapter Extension Cable Graphics Card Compatibility: for 50 Series; for RX 90xx Series; New PCIe 5.0 Graphics Cards (backward compatible) Motherboard Compatibility: , ITX/ Motherboards, NUC. Supports only M.2 NVMe interfaces. Does not support M.2 interfaces, M.2 WiFi interfaces, M.2 WWAN interfaces, or USB interfaces. Power Supply Specifications: Supports standard ATX power supplies rated 500W or above. Power supply must be procured by the buyer. Cable Length: 30cm Cable Length and Pin Spacing Specifications: The length specified in the options refers to the cable length only, excluding the PCB and connectors Color: Black Material: PCB+Metal Package Contents: 1* M2 NVMe Key to PCI-E 5.0 X16 eGPU Adapter Cable 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.