No, the ProGrade Digital CFexpress Type B Gold 128GB is not compatible with the Sony FX30.
Sony FX30 takes CFexpress Type A cards only (or SD) -- per Sony's own Help Guide, CFexpress Type B memory cards cannot be used. ProGrade Type B Gold is Type B, a different physical form factor that does not seat in the FX30's slots.
What works instead
See all compatible memory card for the ProGrade Digital CFexpress Type B Gold 128GB →“CFexpress Type B memory cards cannot be used.”
Last verified:
Confidence: inferred