Yes, the Elgato Game Capture 4K X is compatible with the Nintendo Switch 2.
4K X is in Elgato's own recommended console list for Switch 2 and exceeds Switch 2's docked output range (max 4K60) with headroom (4K X supports up to 4K144). No setup beyond plugging in -- Nintendo does not enable HDCP by default on Switch consoles per Elgato's own HDCP article.
“Switch 2, PlayStation 5, PlayStation 5 Pro, Xbox Series X, PC”
Last verified:
Confidence: high confidence