The San Disk 64GB Extreme PLUS 170MB/s UHS-I SDXC Memory Card offers speeds up to 170MB/s & 80MB/s read/write for high speed data with Class 10, U3, V30 compliance for fast frame rates and up to 4K video. Move your photos and videos with this SanDisk SDSDXW2-064G-ANCIN Extreme PLUS memory card. The QuickFlow technology delivers rapid file transfer with read speeds of up to 170MBsec., while the rugged construction offers long-lasting use.