With the docking station for the GPD Win 4 (which is of course not included), you can turn the handheld into a full-fledged desktop PC in a flash.
The docking station offers the following connections:
1x HDMI 2.0
1x 1Gbps Ethernet network connection
3x USB 3.2 Gen 2 Type-A, 10Gbps
1x USB 3.2 Gen 2 Type-C (only suitable for charging)
The upper USB ports on the GPD Win 4 can still be used without any problems.