This 64GB PRO UHS-I microSDXC Memory Card from Samsung holds 64GB of data. Its Ultra High Speed Class 1 (UHS-I) bus interface enables it to achieve maximum read and write speeds of 90 MB/s and 80 MB/s respectively, which are far greater than the 30 MB/s minimum speeds guaranteed by the UHS Class 3 rating. This microSDXC card is suited for 4K content, Full-HD video recordings, and high-resolution pictures.
The PRO series is waterproof (lasting up to 24 hours in seawater), magnet-proof, and X-ray-proof. Additionally, it is capable of withstanding temperatures of -13 to 185°F.