Let me start by saying this card is a BEAST for handling large files. I've been using it in my Sony A7IV for a month now, shooting both 4K60p videos and RAW bursts, and it hasn't missed a beat.

The advertised 170MB/s read speed? Totally legit. I timed transfers of a 50GB video project to my MacBook Pro, and it consistently hit 165-168MB/s with my USB-C reader. That's faster than some SSDs I've used!

Where this card really shines is continuous shooting. During a recent sports event, I rattled off 250+ RAW images in one sequence (about 12GB worth) without any buffer slowdown. The U3/V30 rating means it keeps up with demanding cameras beautifully.

The rugged build feels premium - noticeably thicker than bargain SD cards. After accidentally dropping it in a puddle (oops!), the waterproofing claim held true. My heart stopped but the card kept working flawlessly.

One minor gripe: The actual formatted capacity shows as 931GB (normal for storage devices), but I wish manufacturers would advertise this more clearly. Still, that's enough for about:
- 180 hours of 4K footage
- Or roughly 25,000 RAW+JPEG shots from my camera

Compatibility has been perfect across:
- My Sony camera
- DJI Air 3 drone
- Steam Deck (for game storage)
- Even an old Nikon D750 recognized it after firmware update

The only real con? No included case or adapter. For a premium card at this price point, that feels like a missed opportunity.

If you're serious about photography/videography and need reliable high-speed storage, this DIGIERA card delivers professional performance without the 'pro' price tag. Just buy a protective case separately!