PCI-E External Laptop Video Card Dock Graphics CardFeatures:High-quality imported electronic components, multi-level anti-interference and isolation for circuit.Multi-power automatic switching (support is an external graphics adapter device for notebook computers; it can help you use external independent high-performance graphics, which can be used to access any PCI-E device to the of computer, so that you can for play those demanding Large game with graphics in the for case of engineering measurement, data collection, server debugging, computing and other industrial applications, it will still be used to access most graphics cards to for play games.It has a 6pin used to the power supply of the graphics card; an 8-pin used to the power supply.Specifications:1. Support : PCI-E X162. Input : for M.2 A for Key3. Support : PCI-E X16 5 s : 220W(8Pin 150W(for 5 USB : 1.0/1.1/2.06. Compatible system : for 7 10 Package Includes:1 * Power cord1 * adapter1 * cableNote:1. Usually the laptops with correct can work with our products , but some laptops can not work with it because different or configuration (such as white list issue or limit, even some interfaces limit). Not all model of laptop support to use this product. You need to learn it fully before buy it.2. Some laptop has both 2 of the interfaces , but it just support to use of to external card. For example the T420 , it can use to use this product , but can not used on wireless card (for M.2A/E for Key ).3. Some old model laptops must use 1 piece of 2GB