PNY Elite-X 256GB microSDXC Memory Card with SD Adapter, Class 10, UHS-I, U3, V30, A1

The PNY Elite-X 256GB microSDXC card is high-capacity storage for phones, tablets, drones, action cameras and dash or surveillance cameras. A full-size SD adapter is included, so the same card drops into a camera or a laptop with a standard SD slot. It runs on the UHS-I interface and carries a full set of speed ratings: Speed Class 10, U3 for a sustained write floor of 30MB/s, V30 for video, and A1 for application performance. The V30 rating is what makes it dependable for 4K UHD and Full HD capture, where a card that stalls mid-clip drops frames. A1 sets a minimum of 1500 read and 500 write IOPS, which is what counts when apps are installed on the card and have to load from it. Sequential reads reach up to 100MB/s. The card is built to resist shock, temperature extremes, water, X-ray, vibration, ESD, humidity and wearout. The capacity suits long recording more than casual use — a dash camera looping for days, a surveillance camera left running, a drone shooting 4K, or a phone carrying an entire photo library. The humidity and temperature tolerance is worth having in a card that lives on a windscreen or in a camera bag through a Dhaka summer. PNY backs it with a limited lifetime warranty.