Yes, the Lexar Professional 1667x 64GB SD works with the Sony Alpha 1 — but only Compatible with XAVC S 4K/HD and XAVC HS 4K at.
Lexar 1667x is V60 UHS-II (write 120 MB/s). Sony A1 spec table allows V60 for XAVC S 4K and XAVC HS 4K at 280Mbps but requires V90 for XAVC HS 8K (520Mbps) and XAVC S-I 4K (600Mbps). Card cannot record the A1's highest-bitrate formats.
Conditions for compatibility
Compatible with XAVC S 4K/HD and XAVC HS 4K at standard bitrates (V60 sufficient). Incompatible with XAVC HS 8K (520Mbps, requires V90) and XAVC S-I 4K (600Mbps, requires V90). Not recommended for highest-bitrate A1 video workflows.
“XAVC HS 8K 520Mbps *1 CFexpress Type A memory card (VPG200 or higher) SDXC V90 or higher *2”
Last verified:
Confidence: inferred