Features: 1.USB2.0 and USB3.0 four ports, which can be used by external U disk, keyboard, mouse, mobile hard disk and other devices. 2.4K high definition visual effect, high resolution, video and audio synchronization support three dimensional effect, restore the real touch. 3.Supports T flash card and storage card flash reading, which effectively solve the problem of no card reader slot in laptops. 4.The multifunctional interface expands one machine for multiple purposes, which can meeting the needs of different situations. 5.Upgraded one piece aluminum alloy material, effectively speeding up the heat dissipation of the dock and making it more stable. specification:Item Type: Docking Station Material: ABS, Aluminum Alloy Model: 33S11-RTK Main Control Chip:AG9311 Interface: High Definition Multimedia Interface, 1 x USB3.0, 3 X USB2.0, RJ45 (Gigabit), VGA, PD, Audio, Storage Card Interface, T Flash Card Interface USB3.0 Transfer Rate: 5Gbps USB2.0 Transfer Rate: 480Mbps PD Power: 87W (Maximum) High Definition Multimedia Interface Resolution: 4K x 2K (3840 x 2160) 30Hz VGA Resolution: 1080P Audio Interface: Approx. 3.5mm / 0.14in RJ45 Network Port Rate: 10/100/1000m Working Voltage: DC5V Application: Support All Type C Channel Computers Operating System Compatibility: For Windows 8.1, For Windows 10, For OS X 10.10-10.14 PackageList:1 x DockingStation