Yes, the ProGrade Digital V60 128GB SD works with the Sony Alpha A9 III — with conditions (see below).
ProGrade Digital V60 128GB SD is V60 class. Clears: XAVC S HD (100 Mbps, requires U3); XAVC HS 4K (280 Mbps, requires V60); XAVC S 4K (280 Mbps, requires V60). Does not meet the floor for: XAVC S-I 4K (600 Mbps, requires V90); XAVC S-I HD (222 Mbps, requires V90).
Conditions for compatibility
Compatible with standard XAVC HS 4K (280Mbps), XAVC S 4K (280Mbps), and XAVC S HD (100Mbps) — all require V60 or lower. Cannot record XAVC S-I 4K (600Mbps, requires V90) or XAVC S-I HD (222Mbps, requires V90). S&Q Motion 4K requires V90 — not supported. Upgrade to V90 for intra-frame or S&Q recording.
“This camera supports CFexpress Type A memory cards and SD memory cards (UHS-I, UHS-II compatible).”
Last verified:
Compatibility inferred from spec rule (citations above are manufacturer-verified)