Amazon has a very hot Prime Day spotlight deal on SanDisk Extreme SD cards. This is the latest version of their Extreme line, UHS speed class 3 topping out at 90MB/s. This is even faster than their previous “Extreme Plus” line. This deal is only available to Amazon Prime Members. See our Prime Day coverage.
Prime Day: SanDisk Extreme SD 90MB/s, 128 GB $42, 64 GB $21.50

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Wish they had the “pro” cards on deal topping 95 MB/s for upcoming 4k recording Canon bodies 😉
Agreed. These aren’t super impressive at 40MB/s write speeds. They’re fine if you don’t need the speed. Good cards.
Dennis Baloy
This price is also being offered at B&H today only as well.
I can’t use with my Sony FDR-AX100
This doesn’t support 4k?
wish it was the extreme pro