With delkins usb 30 dual slot sd uhs ii and cf memory card reader you can transfer 4k 2k 3d videos as well as high res raw images quickly and efficiently at super high speeds based on a usb 30 interface the reader is able to transfer data at speeds up to 500mbs 10x faster than usb 20 and is designed to fully utilise the high speed transfer capabilities of sd uhs ii and cf udma 7 memory cards so that you can start working on your files sooner the sd slot is designed with a second