Best Memory Cards for Sony a7 III

Looking for the best SD memory cards for Sony a7 III mirrorless camera? Here are the top recommended SD cards for Sony a7 III.

The new Sony a7 III ($1,998 at Amazon, B&H, Adorama) mirrorless camera comes with two SD memory card slots: The card slot 1 supports ultra-fast UHS-II SD memory cards while the Card Slot 2 is compatible with UHS-I memory cards. As we all know, every second matters in photography, so a fast enough memory card is a must for serious photographers. So, if you want to shoot 4K video with the Sony a7 III, a fast UHS-II SD memory card is a must, or you will have to wait longer for the buffer to clear and before you can start taking photos again: Fast write speed provides fast buffer clearing time between burst shots optimizing your shooting experience. Fast read speed can let large files such as 4K video or a bunch of high-resolution images by continuous shooting transfer to PC in seconds.

Reminder: if you plan to shoot videos, stick to 64GB or 128GB (or larger) SDXC cards for the best video codex.

Below are the top recommended memory cards for Sony a7 III, just choose the one you need!

UHS-II SD Cards | UHS-I SD Cards

Best UHS-II SD Memory Cards for Sony a7 III

The Sony a7 III Card Slot 1 supports the ultra-fast UHS-II SD cards, so you’d better pick up a fast and reliable UHS-II SD card to take full advantage of the ultra-fast read speeds and write speeds of the UHS-II SD cards.

Speaking of the UHS-II SD cards, the Sony SF-G Tough UHS-II SD Card, Kingston Canvas React Plus UHS-II SD Card and Lexar Professional 2000x UHS-II Card are the top three choices. Offering maximum read speeds of up to 300 MB/s and maximum write speeds of up to 299 MB/s, the Sony SF-G Tough Series UHS-II SD card is currently the world’s fastest SD card on the market, and it is well-suited for video capture, including 8K, 4K XAVC S, 60p AVCHD, 3D, HFR, and Full HD video, as well as super fast continuous shooting. In addition, the Kingston Canvas React Plus UHS-II SD Card is another great choice and great value SD card for shooting 8K, 4K, and Full HD video, as well as high-resolution photos. Lexar, SanDisk, ProGrade Digital, Delkin Devices and Hoodman also released their super fast UHS-II SD cards, which are excellent choices for the Sony a7 III mirrorless camera. You can just choose the one you like.

UHS-II SD Card	Max. Read Speed	Max. Write Speed
Sony SF-G Tough UHS-II SD Card (V90)	300 MB/s	299 MB/s
Kingston Canvas React Plus UHS-II SD Card (V90)	300 MB/s	260 MB/s
Lexar Professional 2000x UHS-II Card (V90)	300 MB/s	260 MB/s
SanDisk Extreme PRO UHS-II Card	300 MB/s	260 MB/s
Hoodman Steel 2000x SDXC UHS-II Card	300 MB/s	260 MB/s
ProGrade Digital UHS-II SDXC Card (V90)	300 MB/s	250 MB/s
Delkin Devices Power UHS-II SDXC Card (V90)	300 MB/s	250 MB/s
Sony SF-M Tough UHS-II SDXC Card (V60)	277 MB/s	150 MB/s
ProGrade Digital UHS-II SDXC Card (V60)	250 MB/s	130 MB/s
Lexar Professional 1667x UHS-II SD Card (V60)	250 MB/s	90 MB/s

Best UHS-I SD Memory Cards for Sony a7 III

The Sony a7 III Card Slot 2 is compatible with UHS-I memory cards. Speaking of the UHS-I SD cards, the Lexar Professional 1066x UHS-I SD Card, SanDisk Extreme PRO UHS-I SD Card and Kingston Canvas Go! Plus UHS-I SD Card are the top three choices for you!

Offering maximum read speeds of up to 160 MB/s and maximum write speeds of up to 120 MB/s, the new Lexar Professional 1066x UHS-I SD Card (V30, U3) is the fastest UHS-I SD card on the market and the top choice for you. This card has also been designed with the V30 Video Speed Class rating, which guarantees minimum write speeds of at least 30 MB/s. Besides, the SanDisk Extreme PRO UHS-I SD Card and the Kingston Canvas Go! Plus UHS-I SD Card are another two of the fastest UHS-I SD cards and the most popular cards out there and are almost always two of my top recommended UHS-I SD cards. Offering the same up to 170 MB/s read speeds and up to 90 MB/s write speeds, these two cards are ideal for shooting 4K UHD video and burst-mode photography, and they supports the V30 speed class, which guarantees minimum write speeds of 30 MB/s. In addition, if you need some budget choice, you can also consider the SanDisk Extreme UHS-I SD Card (V30, U3). Below are the top recommended UHS-I SD cards for Sony a7 III based on the speed and price, just get the one you like!

UHS-I SD Cards	Max. Read Speed	Max. Write Speed
Lexar Professional 1066x UHS-I SD Card (V30, U3)	160 MB/s	120 MB/s
SanDisk Extreme PRO UHS-I SD Card (V30, U3)	170 MB/s	90 MB/s
Kingston Canvas Go! Plus UHS-I SD Card (V30, U3)	170 MB/s	90 MB/s
SanDisk Extreme UHS-I SD Card (V30, U3)	150 MB/s	70 MB/s
Samsung PRO Plus UHS-I SD Card (V30, U3)	100 MB/s	85 MB/s
Kingston Canvas Select Plus UHS-I SD Card (V30, U3)	100 MB/s	85 MB/s

Read more: Best Lenses for Sony a7 III.