Verified Memory Cards (CFexpress Cards)

Operation of the following CFexpress cards has been verified.

Manufacturer Card Capacity (GB)

EOS R3

(As of September 2021)

Still Photos

RAW Movies

6K 59.94 fps

ProGrade Digital Cobalt 650 Supported Supported
325 Supported Supported
Gold

1024

(Speed as labeled: 1700 MB/s)

Supported Supported

512

(Speed as labeled: 1700 MB/s)

Supported Supported
SanDisk Extreme Pro 512 Supported Supported
256 Supported Not supported
Lexar 512 Supported Supported
256 Supported Supported
Sony TOUGH 512 Supported Supported
256 Supported Supported
  • All cards measured with [Auto pwr off temp.] set to [High].
  • High internal camera temperatures will cause the camera to switch to Power off automatically.
  • Memory cards may become hot during RAW movie recording. If so, recording may stop before the camera switches to Power off.