Simply the right card Free up your devices with the largest capacity and enhanced transfer speeds; great for 4K UHD video.* The Samsung EVO memory cards provide the reliability and performance you expect for your devices. For best 4K UHD video support Samsung recommends using 64GB cards or higher. Host device compatibility may vary. Capacity to live large Feel confident to capture| store and transfer videos| photos| music and other large files effortlessly. With massive amounts of storage| you can go ahead and savor all of what life has to offer. The forgoing statement is based on internal tests performed with Samsung Galaxy S7 as host device and under the assumption that average actual storage capacity is 93.1% of labeled capacity. Actual storage capacity may be lower than labeled capacity. Extended compatibility Compatible with a wide range of devices for both SD and micro SD. You can even capture detailed 4K UHD video. The included SD adaptor fits most devices under almost every brand name| while preserving all of EVO's outstanding speed and performance. Fulfill your need for speed Record and play 4K UHD video. With enhanced transfer speeds up to 100MB/s| the 128GB EVO lets you transfer a 3GB video to your notebook in just 38 seconds. Shoot high quality photos and videos| and share them all in an instant. *Evo Plus 32GB: Read Speed Up To 95Mb/s| Write Speed Up To 20Mb/s *The foregoing read & write speeds are based on internal tests conducted under controlled conditions. Actual speeds may vary depending upon card capacity. 4-Proof protection Your experiences are irreplaceable| and now unforgettable. Backed by 4-proof protection| the EVO memory cards can withstand up to 72 hours in seawater??| extreme temperatures??| airport X-ray machines?? and magnetic fields??? equivalent to an MRI scanner. Samsung provides a 10-year limited warranty?€? . ??Certified waterproof with IEC 60529 and IPX7 rating ??Operating temperatures of -25??C to 85??C|recovery.