CY Micro USB Host OTG Adapter Cable with Dual Port Hub for Galaxy S5 S4 S3 Note2 Note3 Note4 Phone & Tablet Micro USB Host OTG Adapter Cable with Dual Port Hub for Galaxy S5 S4 S3 Note2 Note3 Note4 Phone &amp; Tablet Can connect the Mouse or keyboard or flash disk or Card reader. Can connect two usb device and work at the same time. Only Support FAT32 disk format for Android System. Compatible with Samsung Galaxy S3 i9300 S4 i9500 Note2 N7100 Note3 N9000 Note4 &amp; S5 i9600 and All Micro USB OTG function tablet/phone.