Extreme speeds to catch your best shots. UHS Video Speed Class 30 (V30) [32GB-64GB only] and UHS Speed Class 3 (U3) allow you to record in 4K UHD, taking your videos to next-level resolution. Available in storage capacities of 16GB-64GB and with read speeds of up to 90MB/s for fast transfer, these cards are compatible with SDHC and SDXC supporting devices and come with a lifetime warranty .SanDisk products are constructed to the highest standards and rigorously tested. You can be confident in the outstanding quality, performance and reliability of every SanDisk product.