SanDisk 256GB High Endurance microSDXC Card with Adapter for $70

Dash cams and home security systems write data constantly, so the high endurance rating here matters more than raw speed if you're recording in a continuous loop. This card is built to handle that kind of rewrite cycle without wearing out as fast as a standard microSD would. Buy Now at Newegg Features 256GB storage capacity for extensive video recording 4K UHD video recording support 100MB/s read and 40MB/s write speeds Class 10, UHS-I, U3, V30 speed ratings Model: SDSQQNR-256G-GN6IA