Yes, the Delkin Devices PRIME SD V60 128GB is compatible with the Sony A7C II.
Delkin Devices PRIME SD V60 128GB is V60 class. Meets the floor for: 4K30 (30 MB/s floor); 4K60 (60 MB/s floor). (Peak write 105 MB/s is not evidence of sustained performance; the V60 class rating above decides this.)
Limitation
Does not meet Sony A7C II's top XAVC S-I 4K (600Mbps) SD-slot mode -- requires Video Speed Class V90, this card is V60. Works for XAVC HS 4K (200Mbps) and lower-bitrate modes.
“Sony A7C II Help Guide: XAVC S-I 4K at 600Mbps requires SDXC V90 or higher; XAVC HS 4K at 200Mbps requires SDHC/SDXC U3 or higher.”
Last verified:
Compatibility inferred from spec rule (citations above are manufacturer-verified)