Features: 1.Designed for Graphics Card: This laptop video card dock allows laptop to use the independent external high performance graphics, can be used to use equipment with pcie interface. 2.Express Card Data Cable: This EXP GDC comes with an Express card data cable and a 6pin/8pin power cable for easy connection. 3.NGFF M.2 A Key: This laptop graphics card dock adopts NGFF M.2 A key connection, suitable for laptop with NGFF M.2 A key interface. 4.Power Supply: This external video card dock is equipped with 6Pin interface for graphics card power and 8Pin for EXP GDC power. 5.Wide Application: This laptop external video card dock is ideal for engineering survey, data acquisition, server debugging, GPU computing and other industrial applications. specification:Item Type: Laptop Video Card Dock Material: ABS, Printed Circuit Board Application: Suitable for Laptop with NGFF M.2 A Key Interface PackageList:1 xLaptop Video Card Dock 1 x Connecting Cable 1 x Power Cable 1 x User Manual