Unused, in open box.

Dock connections:

1 USB-C® (USB3.1 Gen 2, power up to 7.5 W)

Support DP alt mode

1 USB-C® (USB3.1 Gen 2 data only, power up to 7.5 W)

1 USB-A 3.2 (USB3.1 Gen2)

1 HDMI 2.0 port with 4K@60Hz

Support USB-C PD charging (up to 60 W)

https://www.microsoft.com/en/accessories/products/headsets/microsoft-audio-dock?activetab=pivot:techspecstab