RDF5 Engineered to deliver super fast data transfer speeds, the RDF5 USB 3.0 card reader features a SuperSpeed USB 3.0 interface and support for next-generation Ultra High Speed SDHC/SDXC and microSDHC/SDXC cards. Capable of being plugged directly into the USB port on any desktop or notebook computer, the ultra compact RDF5 offers effortless file sharing in any situation. Key Features Portable handy design Super-Speed USB 3.0 interface (also compatible with USB 2.0) Supports next-generation memory cards including SDHC UHS-I, SDXC UHS-I, micro SDHC UHS-I, micro SDXC UHS-I Convenient LED Indicator shows data transfer activity Specifications Dimensions (Max.) 56 mm x 24 mm x 8.9 mm (2.20" x 0.94" x 0.35") Weight (Max.) 18 g (0.63 oz) Color Black / White / Pink USB Type-A USB 3.0 Card Reader Slot(s) SD /microSD Warranty 2 year Operating System Microsoft Windows 7 Microsoft Windows 8 Microsoft Windows 10 Mac OS X 10.2.8 or later Linux Kernel 2.6.30 or later Memory Card Supported SDHC (UHS-I)/SDXC (UHS-I)/microSDHC (UHS-I)/microSDXC (UHS-I)