This USB Host adapter allows you to connect a USB memory stick、 an USB 2.0 memory card reader、 or a keyboard to your Tablet & Cell Phone. PC-free back up of videos and photos from Tablet & Cell Phone to an external memory stick in a convenient way. Connect to a keyboard for easier control of your Tablet & Cell Phone. Compatible with Samsung Galaxy S3 i9300 S4 i9500 Note2 N7100 Note3 N9000 & S5 i9600 and All Micro USB OTG function tablet/phone Dimensions: 1.97 in x 1.18 in x 0.39 in (5.0 cm x 3.0 cm x 1.0 cm) Weight: 0.63 oz (18 g)