In July 2019, Sony announced the new flagship full frame Sony a7R IV mirrorless camera (Amazon/ B&H/ Adorama). It is the fourth edition of the Sony a7R, featuring an updated 61MP Exmor R BSI CMOS sensor and BIONZ X image processor to render crisp and smooth images including the new UXGA (Ultra-XGA) OLED Tru-Finder, which has 5.76 million dots for enhancing details, brightness, and contrast. Below are the top recommended memory cards for Sony a7R IV. You can choose one or more card for your Sony a7R IV.
Sony a7R IV has dual SD card slot that supports UHS-II SD memory cards, so if you make full use of Sony a7R IV, you must have a fast SD memory card.
Below is our list of best SD memory cards for Sony a7R IV mirrorless camera (ranked by write speeds). Just choose the one you like. From the list, you can see Sony SF-G Tough UHS-II SDXC is the fastest & toughest card for Sony a7R IV with the fastest write speed at 299 MB/s.
| Memory Card | Max. Read Speed | Max. Write Speed | Check Price |
| Sony SF-G Tough UHS-II SDXC | up to 300 MB/s | up to 299 MB/s | Amazon/ B&H/ Adorama |
| Lexar Professional 2000x UHS-II SDXC | up to 300 MB/s | up to 260 MB/s | Amazon/ B&H/ Adorama |
| SanDisk Extreme PRO UHS-II SDXC | up to 300 MB/s | up to 260 MB/s | Amazon/ B&H/ Adorama |
| Lexar Professional 1000x UHS-II SDXC | up to 150 MB/s | up to 90 MB/s | Amazon/ B&H/ Adorama |
| SanDisk Extreme PRO 128GB UHS-I U3 V30 | up to 170 MB/s | up to 90 MB/s | Amazon/ B&H/ Adorama |
| Kingston Canvas React 128GB UHS-I U3 | up to 100 MB/s | up to 80 MB/s | Amazon/ B&H/ Adorama |
| Sony 64GB UHS-I U3 | 94 MB/s | 70 MB/s | Amazon/ B&H/ Adorama |
| Transcend 64GB UHS-I U3 | 95 MB/s | 60 MB/s | Amazon/ B&H/ Adorama |
| SanDisk Extreme Plus 64GB UHS-I U3 | 90 MB/s | 60 MB/s | Amazon/ B&H/ Adorama |
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