No, the Delkin Devices POWER CFexpress Type B 128GB is not compatible with the Sony Alpha 1.
Sony A1 does not accept CFexpress Type B cards. The A1 uses combo slots accepting only Type A or SD — Type B is a physically different form factor.
What works instead
See all compatible memory card for the Delkin Devices POWER CFexpress Type B 128GB →“CFexpress Type B memory cards cannot be used.”
Last verified:
Confidence: inferred