Sandisk 64GB Extreme UHS-I SDXC Memory Card UHS-I / V30 / U3 /Class 10, Read Speed: 170 MB/s & Write Speed: 80 MB/s.

The 64GB Extreme sd Memory Card from SanDisk allows users to capture content during fast action shots, continuous burst mode, and multiple frames per second with advanced cameras and HD camcorders. With a capacity of 64GB, this card is compatible with the UHS-I bus, and delivers maximum read speeds of up to 170 MB/s and maximum write speeds of up to 80 MB/s. This Extreme UHS-I SDXC card supports the V30 speed class, thus it guarantees minimum write speeds of 30 MB/s. If your device does not support the V30 speed class, this card also supports the U3 speed class, which guarantees minimum write speeds of 30 MB/s. If your device only supports the Class 10 standard, minimum write speeds are guaranteed not to drop below 10 MB/s.