Kingstons microsdhc uhs i u3 flash card features impressive speeds that allow users to capture cinema quality full hd 1080p ultra hd 2160p 3d and 4k2k videos its a perfect match for high performance small form factor devices such as smartphones and portable camcorders with speeds of 90mbs read and 80mbs write it makes editing and uploading files faster especially when used with kingstons usb 30 card readers including mobilelite g4 and media reader higher sustained write speeds