Features: 1.Function: External video card dock can be used with any pci e interface device to enhance the performance of your laptop. 2.Power Cable: External independent video card dock has an Express card data cable and a 6 pin and 8 pin power cable in the base. 3.M.2 A/E Key Cable: M.2 A/E key cable has been enhanced with a 26pin connector to support Type 54 and Type 34 Express card interfaces. 4.6 Pin Connector: 6 pin connector is used to connect to the graphics card power supply, and the 8 pin connector is used to connect for EXP GDC power supply. 5.Premium Material: External laptop video card dock is made of premium electronics and plastic, lightweight, portable and durable. specification:Item Type: External Video Card Dock Material: Plastic, Electronic Interfaces: 1 x PCI E 16X Interface 1 x 6P Power Output Interface 1 x 8P Power Connector 1 x DC Power Connector 1 x USB Interface 1 x Data Cable Interface PackageList: 1 x External Video Card Dock 1 x M.2 A/E Key Adapter Cable 1 x 8 To 24 Port Atx Adapter Cable 1 x Instruction Manual