Microsd memory card more memory for your mobile device high read and write speeds the evo plus microsd card from samsung has an additional storage capacity and supports multiple devices simultaneously so you can concentrate on life rather than technology the card is compatible with uhs i speed 82038203class 1 u1 and class 10 and therefore is perfect for photo and video recordings and playback in full hd and thanks to a read speed of 80mb s and a write speed of 20mb s and videos