SanDisk 64&128GB Extreme PRO UHS-I SDXC Memory Card WARNING!
Several readers alerted me to SanDisk 64 GB & 128GB Extreme PRO UHS-I SDXC memory card incompatibility problems in Sony a7 III, a7R III & a9 card slot 1
Camera Battery Case Compatible for Sony NP-FW50 ...
Product Model: A6500 / ILCE-6500. ... New SD Memory Card Slot Reader Board PCB Assy CN-1053 For Sony A6500 / ILCE-6500.
What SD cards work best with the Sony A7 IV? : r/SonyAlpha
The Sony A7IV features a dual memory card configuration, allowing it to accept both SD memory cards and CFexpress Type-A cards in the same slot, but only Slot 1 offers this capability.