Product Name: Graphics card external adapter board extension cable Model Description: DOCK-M.2 NVMe/M.2 NGFF/Mini PCIe/PCIE X1/PCIE X4 Interface Application: eGPU for NUC / ITX / STX / Notebook PC Graphics card compatibility: support for graphics cards shipped after 2015 (old graphics cards shipped before 2014 are not supported) Power Description: The model that supports the power supply is DELL 12V/18A/220W power supply, or the standard ATX power supply. Please prepare or purchase the power separately. Colour:As Shown Material:plastic+metal Package Contents: 1 x Laptop External Graphics Card 1 x M.2 NVMe Extension Cable(Length: about 25cm) 1 x power cord 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.