Bidul & Co USB Hub and card reader for Microsoft Surface RT Simply plug the S-USBHub 4 in 1 into your Microsoft Surface RT or Pro , then you can connect a keyboard, mouse, a printer, an external HDD, etc S-USBHub 4 in 1 replace the Microsoft Surface RT and Pro USB Port by 2 USB Port and 1 Micro SD, 1 SDHC/MMC 4.0, 1Micro USB ports Ultra compact and sleek, fits dynamically onto your Microsoft Surface RT , Pro