The new announced Sony a7R IV (B&H Photo Video/Adorama/Amazon) 61MP full frame mirrorless camera has two memory card slots, and both are support UHS-II SD memory cards. So in order to max use of Sony a7RIV, a fast SD card is needed, you can use currently fastest SD cards UHS-II cards for Sony a7R IV. Below are top recommended UHS-II memory cards for Sony a7R IV. See the details below:
RECOMMENDED UHS-II SD MEMORY CARDS FOR SONY A7RIV:
To max use of a7R IV, you’d better get a UHS-II SD card. Currently the fastest & toughest UHS-II SD memory card is Sony’s best selling SF-G UHS-II Tough SD card, this card has fastest read speed at 300 MB/s & write speed at 299 MB/s. The Lexar Professional 2000x UHS-II SDXC card and SanDisk Extreme PRO UHS-II SDXC card both has the same max read 300 MB/s and write speed 260 MB/s.
| Card | Max. Read Speed | Max. Write Speed | Check Price |
| Sony SF-G Tough UHS-II SDXC | 300 MB/s | 299 MB/s | Amazon/B&H/Adorama |
| SanDisk Extreme PRO UHS-II SDXC | 300 MB/s | 260 MB/s | Amazon/B&H/Adorama |
| Lexar Professional 2000x UHS-II SDXC | 300 MB/s | 260 MB/s | Amazon/B&H/Adorama |
| Hoodman Steel 2000x SDXC UHS-II | 300 MB/s | 260 MB/s | Amazon/B&H/Adorama |
| ProGrade Digital UHS-II SDXC | 300 MB/s | 250 MB/s | Amazon/B&H |
| Delkin Devices Power SDXC UHS-II | 300 MB/s | 250 MB/s | Amazon/B&H |
| Sony SF-M Tough UHS-II SDXC | 277 MB/s | 150 MB/s | Amazon/B&H/Adorama |
| Lexar Professional 1667x UHS-II SDXC | 250 MB/s | 90 MB/s | Amazon/B&H/Adorama |