Features: Support up to 85W reverse charging for laptop. Solved the problem where the old version of 65W cannot meet the needs of some laptops. Features chaining capability, mounting brackets for component installation, and compatibility with mainstream graphics card Suitable for gamers, content creators, and professional requiring graphics from laptops. Transform into a powerful gaming or station by connecting GPUs, monitor. Offering stable power delivery and streamlined with easy bracket installation. Specifications: Component:Metal Speed: 40GB/S Size: Approx.200x140x40mm/7.87x5.51x1.57inch Package Includes: 1 Set Graphics Card Expansion Dock note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.