Lenovo ThinkPad Universal USB-C Dock (40AY0090SA) - Maximum Resolution and Refresh Rate: Two at 3840x2160 @60Hz, One at 3840x2160 @30Hz, Input Power: 90W, Output Power: 65W with 90W power adapter connected;100W with 135W power adapter connected, Connectivity: Ethernet: Gigabit Ethernet, Audio Ports: Combo Audio Jack, USB Ports: Three USB 3.1, Two USB 2.0, One USB-C, Video Ports: Two DisplayPort (DP), One HDMI, Operating System Requirement: Support OS: Windows 11; Windows 10; Windows 7