Micro USB OTG HUB 4in1 SD HC TF Card Reader For Galaxy S3 S4 Note 2 Smart phone White Supports read/write large capacity SD (hc)/TF/M2 memory cards 4 in 1 micro USB card reader and HUB for smartphones, tablets and personal computers Provides the perfect OTG solution - ideal for smartphones and tablets High-speed transmission at 480Mbps with fast reading and USB plug&play function - for specific PC use on Windows 8/ME/2000/XP/Vista Compatible with Galaxy S3 S4 Note 2 Android Smartphone/Tablet