Memory Card SanDisk Ultra 32GB microSDHC Class 10 UHS-I with a read speed of up to 48 MB / s for Android + SD card adapter easy open package (SDSDQUN-032G-FFP-A) (Accessory)
40MB / s read, 7MB write. Good writing this boundary limit, but for reading is nickel. Bought for a PSP with an adapter, the games run without worry.