Applicable to a Micro USB OTG function of the smart phone / tablet (can first consult whether smart phones or tablet support OTG function) Plug and Play， ready to expand the mobile phone， tablet functionality can be directly connected to the other USB devices without via PC An external mouse / keyboard / pen drive / card reader， etc. (external hard drives require external power driven) Support a new generation of high-speed SDHC CLASS 10 & SDXC memory card specification， support up to 64GB !!! Support hot-swappable， plug and play support for USB 2.0 / 1.1 specification maximum transmission up to 480MB / S Multi-slot design: a variety of specifications can read memory cards available in the market， and avoid the riser card. Information on the go: connected to the memory card later， it becomes a flash drive， you can at any time information from the computer / phone Removing the cross-platform systems: Windows 98SE / ME / 2000 / XP / Vista32bit / Vista64bit / 7/8 / Macintosh OS / LINUX