Compatibility lab
Check the connection before replacing the hardware
These two checks turn published port limits into a practical first pass. They cannot verify your cable, display firmware, device charging protocol, or every unlisted mode.
Source data checked 2026-09-08. No prices or stock status are used.
Display path
Steam Deck dock display check
Compare the requested output with Valve’s Docking Station or UGREEN model 25869. A match means the mode fits the published connection limits; it does not promise game performance.
Published match
Within the published single-display limits
Verify that the screen input and cable support the mode, then select it in SteamOS. This checks the connection specification, not the frame rate a game will achieve.
Sources: Valve Docking Station specifications and UGREEN 25869 specifications. Continue with the no-signal troubleshooting sequence.
Power path
Anker 100W port-allocation check
See what the Anker 317 A2672 or Prime A2688 publishes for the selected ports. The main device is the first listed port; connect it there before comparing its target.
Published allocation
100W total
USB-C1: 65W · USB-C2: 35W
65W covers your 65W target on paper. The device, cable and required USB PD or charging protocol must also match.
Sources: Anker’s 317 A2672 specifications and Prime A2688 allocation table. Read the full charger comparison for cables and buyer fit.