Yes, the Lexar Professional 1667x 64GB SD works with the Sony A7C II — but only Compatible with XAVC HS 4K (V30 required — card is.
Lexar 1667x is UHS-II V60. Sony A7C II spec table requires V30 minimum for XAVC HS 4K and V90 for XAVC S-I 4K. Card is V60 — exceeds V30 for HS modes but falls short of V90 for S-I intra-frame recording.
Conditions for compatibility
Compatible with XAVC HS 4K (V30 required — card is V60, passes). Incompatible with XAVC S-I 4K (V90 required — card is V60). Recommended for XAVC HS users; not for intra-frame shooting.
“Sony A7C II Help Guide: XAVC HS 4K at 200Mbps requires SDHC/SDXC U3 or higher; XAVC S-I 4K at 600Mbps requires SDXC V90 — V60 card supports standard 4K formats but not intra-frame 4K.”
Last verified:
Confidence: inferred