Lenovo ThinkPad USB-C Dock 4A09

Security
Kensington® Lock Slot
Ports and Connectors
Three USB 3.0 (1 provide always-on mobile device charging)
Two USB 2.0
One USB-C (Data only, Upstream connector)
10/1000 Gigabit Ethernet
Two DisplayPort
VGA
Stereo/Mic Combo Audio Port
Video Performance
Single 4K @ 3hz
Maximum Number of Displays: 2
To achieve the better user experience of the display, it is recommended to connect one or two displays on dock:

DisplayPort output only: 3840 x 2160 pixels (30 Hz)
VGA output only: 1920 x 1200 pixels (60 Hz)
DisplayPort and VGA simultaneous output: 1920 x 1080 pixels (60 Hz)
DisplayPort and DisplayPort simultaneous output: 1920 x 1080 pixels (60 Hz)