Yes, the Fujifilm X-S20 is compatible with the Samsung PRO Plus 256GB SD.
Fujifilm X-S20 has a UHS-II SD slot. Samsung PRO Plus is UHS-I V30 — operates in backward-compatible UHS-I mode in the UHS-II slot. X-S20 requires V30 minimum for 4K30; card meets V30 requirement.
Limitation
Cannot record at 360 Mbps -- requires Video Speed Class V60 or higher. Works for all lower-bitrate modes (4K30 at standard bitrates, 1080p). Upgrade to V60 or V90 card for full 360 Mbps capability.
“Fujifilm X-S20 specifications: storage media SD/SDHC/SDXC with UHS-I and UHS-II; for movie recording use a card with UHS Speed Class 3 or higher — V30 UHS-I meets this threshold.”
Last verified:
Confidence: inferred