Sony a7R IV vs Sony a7CR: What Should You Get?
Enhancing the capabilities of the new Sony a7R V are its two hybrid memory card slots, which can accommodate CFexpress Type A or SD cards (while the a7 IV features one hybrid slot and one SD-only slot).
New Nintendo 3DS XL SD Card Slot | The Mod You Need! - YouTube
This is an overview of SD slots on the camera.SONY FULL FRAME CAMERAS:Sony a7 III Full-frame Mirrorless Interchangeable-Lens Camera with 28-70mm Lens Optical...
Tested in Camera: The Best Sony A7R V Memory Cards - Alpha Shooters
Several readers alerted me to incompatibility problems with SanDisk 64GB Extreme PRO UHS-I SDXC & SanDisk 128GB Extreme PRO UHS-I SDXC memory cards in Sony a7 III, a7R III & a9 card slot 1 resulting in this warning: “Unable to read memory card.