Designed for use with high-performance SD UHS-II memory cards, the SanDisk Extreme PRO SDHC/SDXC UHS-II Card Reader/Writer offers the speeds that professional photographers and videographers need to quickly download high-resolution photos and HD videos. A USB 3.0 interface supports transfer speeds of up to 500MB/s to make your post-production workflow more efficient--up to 10 times faster than USB 2.0. Small enough for fieldwork, the card reader/writer features a compact design that makes it easy to take with you wherever you go. It is backward compatible with USB 2.0 interfaces, uhs-i cards, and non-uhs SD cards. Size H155, W105, D28cm. Manufacturers 2 year guarantee.