https://wccftech.com/steam-deck-dock-will-now-have-three-3-1-usb-ports-on-launch/

The Steam Deck is gonna be here… eventually, Designed to be a more portable way to take your Steam Library with you than, say, your laptop, Valve’s upcoming console is hotly anticipated, to say the least. What's more, it has a dock that allows it to connect to TVs and monitors, which is something they’ve been working on as well.

The Steam Deck’s dock, on paper, would function similarly to the currently-out Nintendo Switch’s dock; charge the thing and connect it to a TV while docked. Fundamentally, they’re the same on that level. Today, though, the unreleased Steam Deck’s dock got a hardware upgrade… before it was even released.