The Sony A7S III features two memory card slots and is compatible with both CFexpress Type-A and also UHS-I and UHS-II (SD/SDHC/SDXC) cards in both slots.
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Angelbird
Angelbird 330GB AV PRO CFexpress 2.0 Type A SE Memory Card
Sale price£195.00 GBP
Regular price£219.00 GBP
Save £40.00
Novachips
Novachips 1.6TB Express CFexpress 4.0 Type A Memory Card
Sale price£409.00 GBP
Regular price£449.00 GBP
Save £30.00
Novachips
Novachips 800GB Express CFexpress 4.0 Type A Memory Card
Sale price£269.00 GBP
Regular price£299.00 GBP
Save £20.00
Novachips
Novachips 400GB Express CFexpress 4.0 Type A Memory Card
Sale price£209.00 GBP
Regular price£229.00 GBP
Save £4.00
SanDisk
SanDisk 128GB Extreme PRO UHS-I SDXC Memory Card
Sale price£20.99 GBP
Regular price£24.99 GBP