Data Link Protocol
Ethernet, Fast Ethernet, Gigabit Ethernet Interfaces
2 x display / video - DisplayPort - 20 pin DisplayPort (1.4)
1 x display / video - HDMI - 19 pin HDMI 2.0
1 x USB-C 3.2 Gen 2/DisplayPort 1.4
2 x USB 3.2 Gen 1 - 9 pin USB Type A
1 x USB-C 3.2 Gen 2
1 x network - Ethernet 1000 - RJ-45
1 x USB 3.2 Gen 1 with PowerShare
2 x Thunderbolt 4
https://www.dell.com/en-us/shop/dell-thunderbolt-dock-wd22tb4/apd/210-bdqh/docks