Yes, the Delkin Devices PRIME SD V60 128GB works with the Fujifilm X100VI — with conditions (see below).
Fujifilm X100VI's SD slot is UHS-I only. Fujifilm's own X100VI spec page states UHS-II cards operate in backward-compatible UHS-I mode and meet all recording requirements -- but that's the U3/UHS-I floor, not the V60/V90 UHS-II rating. Delkin Devices PRIME SD V60 128GB is rated V60, a UHS-II-only guarantee that does not survive that fallback -- no UHS-I-mode or U-class figure is sourced for this card, so real sustained write speed here is unconfirmed. Verify before relying on it for 4K30.
Conditions for compatibility
Falls back to UHS-I mode on Fujifilm X100VI's SD slot -- Delkin Devices PRIME SD V60 128GB's V60 rating requires UHS-II and does not apply here. Verify real sustained write speed in UHS-I mode before relying on it for 4K30.
“Fujifilm's own X100VI spec page lists compatible card types (SD/SDHC/SDXC, UHS-I) but states no explicit card speed-class or write-speed requirement for 4K video. This body has a single, modest 4K30-only tier -- consistent with sibling APS-C bodies in this DB with the same shape (nikon-z-fc, canon-eos-r50, nikon-z30, om-system-om-5), all of which use the informal cross-vendor V30/UHS Speed Class 3 minimum for this bitrate class under the same reasoning.”
Last verified:
Compatibility inferred from spec rule (citations above are manufacturer-verified)