Docking Station for Surface Pro 9/10/11/X: This Surface Pro 11 hub specifically developed for Surface Pro 9/10/11/X, which turns the 2 USB-C connection into 7 ports: 1X 4K HDMI, 1X Thunderbolt 4 USB C port (8K@30Hz Video Display + 40Gbps Data Transfer + 100W PD Charging), 2 X USB 3.0 ports, 1X SD card reader slot, 1X TF card reader slot1X 3.5mm Audio PortJust plug and play, no driver needed, While aluminum case protect the shape and easily release heat. Note: This Surface Pro 9 adapter won't fit your Surface Pro 9/10/11/X very well if you use an protective case Triple Display Mode Surface Pro 9 Docking Station: Triple display ( 4K HDMI + USB-C Thunderbolt 4 ) + Surface Pro 9/10/11/X modes Boost your efficiency 3 times. This Surface Pro 9 hub allows you to extend 2 monitors which provide more space for work and you can do different project on different monitors. Support Extend Or Mirror Mode, HDMI Resolution up to 4K@30Hz, USB-C Thunderbolt 4 resolution up to 8K@30Hz; An ideal G