- Is this card fast enough for 4K video?
- Yes. Its U3 and V30 ratings guarantee a sustained write speed of at least 30MB/s, which covers standard 4K recording on most cameras.
- Will it reach 170MB/s in my card reader?
- Only with a UHS-I DDR200 reader, such as SanDisk's own. A standard UHS-I reader tops out much lower, so transfers will be slower.
- Does it work in cameras with a UHS-II slot?
- Yes, but at UHS-I speed. The card fits UHS-II slots and runs at the slower UHS-I bus rate.
- How much 4K video does 512GB hold?
- Roughly 6 to 8 hours at 100Mbps, and more at lower bitrates. Actual time depends on your camera's recording settings.
- Is it worth choosing over a UHS-II card?
- For a UHS-I camera, yes: you get the capacity and reliability without paying for speed the body cannot use. For a UHS-II camera with fast bursts, a UHS-II card is the better fit.
- Where is the SanDisk Extreme PRO UHS-I U3 SDXC Memory Card 512GB cheapest?
- At Newegg, for $223.98, as of our latest check.