This mad genius wired a high-end GPU to his Steam Deck's SSD slot, and it works
Steam Deck Dock, Baseus 6-in-1 Docking Station for Steam Deck & ROG Ally with HDMI 2.0 4K@60Hz, Gigabit Ethernet, Adjustable Stand Design, 3 USB-A 3.0 Ports and PD 100W Support Fast
UGREEN Steam Deck Dock 6-in-1 USB C Docking Station with 4K@60Hz HDMI
6 in 1 for Steam Deck Dock with 4K60Hz Gigabit Ethernet,3 USB3.0 and PD60W(Silver)
Portable Steam Deck Dock, 4-in-1 Steam Deck Docking Station with HDMI 2.0 4K@60Hz, 2 USB-A 2.0 for Keyboard, Mouse and Handle, PD in 100W Max, Steam, steam deck
Digital Foundry's guide to getting the best out of Steam Deck docked
Designed for Valve Steam Deck & Asus ROG Ally., Supports video output up to 1080P@120Hz along with Gigabit Ethernet., Has 3 USB-A 3.0 ports and a
6-in-1 Docking Station for Steam Deck & ROG Ally
Steam Deck Docking Station with Fan 11-in-1 HDMI 2.0 Compatibility 4k@60hz Gigabit Ethernet Fast Charging – Minixpc
4K@60Hz 1000Mbps LAN TV Docking Station for Valve Steam Deck Dock, 6 in 1 Dock with Gigabit Ethernet, HDMI2.0 USB3.0 100W Fast Charging Dock for