Tested with Crystal Mark, average only 93 reads, 74 writes! wasn't happy Then I realized that maybe it was a limitation of my USB 3.0 card reader that was causing the numbers to be low. Popped the card into my GH5s, shot some 4K 400 All-Is and the card seemed to be doing fine (I let it run for about 4 minutes). As a comparison I then tried my Sandisk Extreme Pro 95 card which actually had a higher CrystalMark write score (88) and this card didn't last more than 5 seconds in 4K 400 All-i GH5s before the camera shut down due to - over the insufficient performance of the card. So it seems to be working.
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