Features: brand new and high quality This is the upgraded version TH3P4G2mini , the Thunderbolt GPU Dock. If your laptop has Thunderbolt 3 or Thunderbolt 4 interface, you can use it to connect a external graphic so that to for play game. It comes with S FX and ATX power holder, so that you can use it more convenient. Suitable for the laptop have Thunderbolt 3 or Thunderbolt 4 interface. Easy to use. There is user maunal with the product. for most mainstream graphics cards. Support 60W reverse charging. Come with S FX and ATX holder, be convenient to install the graphice card, power supply and dock together. Package Includes: 1Set x Video Card Dock Specifications: Model: TH3P4G2mini Thunderbolt 3/4 Speed: 40GB/S Aluminum alloy for shell Size: approx. 16.6x9.1x2.8cm/6.54x3.58x1.10in USB 3.0 port extension, 5Gbps Power: ATX/S FX/FLEX/other Thunderbolt: Max 5V 3A Thunderbolt/PD: Max 20V/3A (60W) USB 3.0: Max 5V 2A note: The graphic card and power is not included!