Toshiba 16gb exceria m302 4k 90mbps micro sd card with adapter a toshiba exceria m302 is the microsd card you need if you want to record 4k or full hd videos on your smartphone tablet or sports camera specifications capacity 16 gb interface sdhcsdxc uhs i uhs speed class speed class 1 u1 speed class class 10 max read speed mbs 90 mbs dimensions 15 mm l x 11 mm w x 10 mm h weight approx 04 g adaptor sd card adaptor warranty 5 years