Yes, the Canon EOS R6 Mark II is compatible with the Sony SF-M Tough Series 128GB SD UHS-II.
Sony SF-M Tough 128GB is V60 class (150 MB/s write). Canon R6 Mark II requires Video Speed Class V60 or higher for 4K60 10-bit recording. SF-M exactly meets the V60 floor — all recording modes supported on both SD slots.
“IPB (Standard) UHS Speed Class 3 or higher Video Speed Class V60 or higher”
Last verified:
Confidence: inferred