Bought it in the portable PC phase before Steamdeck came out. Bought both. Not for me. Works great still used a handful of times. Comes with dock and case. Will need to supply own power adapter. I can link one that works if needed.
Compatible Charger Specifications
Connector: USB-C to USB-C
Power Output: 60W (minimum) to 65W+Standard: USB Power Delivery (USB-PD)