Yes, the Panasonic Lumix S5 IIX is compatible with the SanDisk Extreme microSDXC UHS-I 128GB.
Panasonic Lumix S5 IIX has a full-size SD card slot. SanDisk Extreme microSDXC UHS-I 128GB (real write speed 130 MB/s) fits via the bundled microSD-to-SD adapter and clears every recording mode this camera's own page lists a card-speed floor for (none exceed Video Speed Class 60 / 60 MB/s).
Limitation
Does not meet this camera's stored write-speed floors -- 4K30 requires Video Speed Class V60, 4K60 requires V90; this card is V30 class. The bundled microSD adapter provides physical fit only; it does not change the card's class rating. Limited to HD/1080p and any mode below the V30 guaranteed floor.
“*HLG is selectable.) (*¹) (*²) [6K] 5952x3968 (3:2) 29.97p, 200Mbps (4:2:0 10-bit LongGOP) (H.265/HEVC, LPCM) 23.98p, 200Mbps (4:2:0 10-bit LongGOP) (H.265/HEVC, LPCM) [6K] 5952x3136 (17:9) 29.97p, 20”
Last verified:
Confidence: high confidence