Feature: 1. For GPU Dock: For device chip JHL7440 used to break the 22Gbps limitation of JHL6 series and the neutering of JHL8 series PCIE X1. 2. Function: Compatible with GPU dock, you can use the docking station to connect external graphics cards to improve gaming performance. 3. Daisy Chain Support: The port supports daisy chain for excellent performance. Enables 32Gbps data transfer with PCIE3.0X4. 4. Power Supply: Support ATX, SFX for FLEX and other power supplies. Supports PD charging (up to 60W). 5. Easy To Install: Equipped with SFX and ATX brackets for easy installation of graphics cards, power supplies and docking. Specification: Item Type: Graphics Docking Station Material: Aluminum Alloy Model: TH3P4G3 Product Size: Approx.166 x 91 x 28mm / 6.5 x 3.6 x 1.1in Transfer Rate: 40Gbps Usb3.0: 5Gbps Daisy Chain: Support Power Supply: ATX SFX FLEX Other Graphics Card Size Support: Unlimited PD Charging: Maximum 20V3A 60W Usb Function: USB: 5V2A, Type C: 5V3A. Package List: 1 x Graphics Card Docking Station1 x ATX Bracket1 x SFX Bracket1 x Data Cable2 x Screws2 x Plastic Block1 x Screwdriver1 x User Manual Note: Please check if your laptop has USB4 port before purchasing (how to confirm that the laptop has the interface): 1. Check the port information in the device manager, open the device manager of the computer, find the 'port' option in the 'system devices' or 'device manager', check whether there is an option related to the interface; 2. Consult the laptop manufacturer.