The brand new specification of Ultra High Speed Class 1(UHS-1)-U3 SUPERIOR UHS-1(U3) series flash card adopts new Ultra High Speed Class 3 specification (UHS-1(U3)) for 4K transmission,reaching at least 30 MB per second.The multiple progressing of transmission rate makes storage of high quality videos, digital photos and even the 3D games easier. Totally support 4K videos and images, satisfying your demand of 4K Ultra HD entertainment SUPERIOR USH-1(U3) series can extend length of 1080p full-HD videos, and totally support 4K*2K video recording, fully displaying gradational high quality images and videos.The living 4K*2K extremely high quality images makes you feel like in present, satisfying different kinds of demand of entertainment. Complete product line and excellent compatability SP SUPERIOR USH-1(U3) series is available for SDHC, SDXC and microSDHC,can be used in all kinds of DSLR, camcorder and displaying devices with 4K support.