Here are the best memory cards for Canon EOS R3 camera. In this guide you can find our top recommended & fastest CFexpress cards and SD cards for Canon EOS R3 mirrorless camera.

The Canon EOS R3 has dual memory card slots: 1 x CFexpress (Type B) card slot and 1 x UHS-II SD card slot. The CFexpress card slot is ideal for 6K & 4K video recording and high-speed, high-resolution burst shooting needs while the SD card slot is a convenient alternative for backups or less speed-critical shooting.

The Canon EOS R3 ($5999 at Amazon | B&H Photo | Adorama) supports high-res 6K raw 12-bit internal recording and uncropped 4K 120p 10-bit recording with Canon Log 3. The improved Dual Pixel CMOS AF II with 1,053 AF Points features evolved EOS iTR tracking for subjects such as people, animals, as well as select cars and motorcycles down to EV -7.5.

Recommended Memory Cards for Canon EOS R3

The EOS R3 has dual card memory card slots—one CFexpress Type B slot and one UHS-II SD slot—for file-saving flexibility. The CFexpress Type B slot should be prioritized for 6K video recording and fast continuous shooting and the SD slot is a convenient alternative for backups or less speed-critical shooting.

Here are the quick comparison tables of our top recommended CFexpress cards and SD cards for Canon EOS R3 mirrorless camera.

CFexpress Cards:

CFexpress Cards (Type B)	Max. Read Speed	Max. Write Speed	Buy Now
Delkin Devices POWER CFexpress Type B Card	1730 MB/s	1540 MB/s	Amazon \| B&H \| Adorama
ProGrade Digital Cobalt Series CFexpress Card	1700 MB/s	1500 MB/s	Amazon \| B&H \| Adorama
Sony TOUGH CFexpress Memory Card Type B	1700 MB/s	1480 MB/s	Amazon \| B&H \| Adorama
Wise Advanced CFX-B Series CFexpress Card	1700 MB/s	1550 MB/s	B&H
Delkin Devices BLACK CFexpress Type B Card	1645 – 1760 MB/s	1400 – 1710 MB/s	B&H
ProGrade Digital Gold Series CFexpress Card	1700 MB/s	1400 – 1500 MB/s	Amazon \| B&H \| Adorama
SanDisk Extreme PRO CFexpress Card Type B	1700 MB/s	1200 – 1400 MB/s	Amazon \| B&H \| Adorama
Hoodman Steel CFexpress Card	1700 MB/s	1,400 MB/s	Amazon \| B&H \| Adorama
Lexar Professional CFexpress Type-B Card	1750 MB/s	1,000 MB/s	Amazon \| B&H \| Adorama

SD Cards:

UHS-II SD Cards	Max. Read Speed	Max. Write Speed	Buy Now
Sony SF-G Tough UHS-II SD Card (V90)	300 MB/s	299 MB/s	Amazon \| B&H \| Adorama
Kingston Canvas React Plus UHS-II SD Card (V90)	300 MB/s	260 MB/s	Amazon \| B&H \| Adorama
ProGrade Digital UHS-II SDXC Card (V90)	300 MB/s	250 MB/s	Amazon \| B&H \| Adorama
Delkin Devices Power UHS-II SDXC Card (V90)	300 MB/s	250 MB/s	Amazon \| B&H \| Adorama
Delkin Devices BLACK UHS-II SDXC Card (V90)	300 MB/s	250 MB/s	B&H
Lexar Professional 2000x UHS-II Card (V90)	300 MB/s	260 MB/s	Amazon \| B&H \| Adorama
SanDisk Extreme PRO UHS-II SD Card	300 MB/s	260 MB/s	Amazon \| B&H \| Adorama
Hoodman Steel 2000x SDXC UHS-II Card	300 MB/s	260 MB/s	B&H
Sony SF-M Tough UHS-II SDXC Card (V60)	277 MB/s	150 MB/s	Amazon \| B&H \| Adorama
ProGrade Digital UHS-II SDXC Card (V60)	250 MB/s	130 MB/s	Amazon \| B&H \| Adorama
Sony SF-E Series UHS-II SDXC Card (V60)	270 MB/s	120 MB/s	Amazon \| B&H \| Adorama
Lexar Professional 1667x UHS-II SD Card (V60)	250 MB/s	90 MB/s	Amazon \| B&H \| Adorama