Impressive speeds to capture high quality video kingstons microsdhcsdxc uhs i u3 90r80w flash memory cards deliver fast uhs i class u3 speeds up to 90mbs read and 80mbs write that let you capture cinema quality full hd 1080p ultra hd 2160p 3d and 4k videos on high performance small form factor devices such as smartphones and gopro cameras its also great for live television broadcasts and recordings the cards offer faster upload and editing times especially with usb 30 c