Yes, the Fujifilm X100VI is compatible with the ProGrade Digital V60 128GB SD.
Fujifilm X100VI uses UHS-I slot. ProGrade V60 UHS-II in UHS-I mode meets V30 minimum for 4K recording. ProGrade rates this card at 130 MB/s write (V60) -- well above the X100VI's 30 MB/s 4K30 floor, with headroom to spare even in the camera's UHS-I slot.
“SD Card (-2GB) SDHC Card (-32GB) SDXC Card (-2TB) UHS-I”
Last verified:
Confidence: inferred