Features: 1. Suitable for the laptop have -compatible 3 or -compatible 4 interface. 2. Easy to use, supports half height and full height supports 3. It is compatible with devices within 75W, such as PCIE interface calculation card, network card, acquisition card, etc. 4. NOT support . 5. Come with holder, be convenient to install the graphice card, power supply and dock together. Note: The computer needs to have a -compatible 3 or -compatible 4 interface. The docking has double lighting interfaces,which can expand more Fast Charging devices. The graphic card and power is not included! Specification: 1. Model: TH3P4 Lite 2. -compatible 3/4 3. Speed: 40GB/S 4. Size: 134mm x 84mm x 21mm 5. Weight: 196g 6. USB 3.0 port extension, 5Gbps 7. Power: DC 12V 8. Note: -compatible: Max 5V 3A Material: plastic+metal Colour: As Shown Package Contents: 1 x GPU Video Card Dock 1 x 0.5m -compatible Data Cable 1 x Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.