✅ Small, lightweight and portable. Compatible with all smartphones and tablets which supported Micro-USB ports and OTG function.✅ Important Hint: Please make sure your smartphone support OTG (On-The-Go) function and maximum applicable expansion capacity before purchasing. (Please Note: Some old version phones do not support the OTG feature, or the maximum expansion capacity that can be supported is only 16G or less).✅ Are you still worried about the lack of memory on your mobile phone? You need to prepare a  flash memory pen drive that provides additional storage for your mobile device for photos, music, videos and other files.✅Easy to read and write in high speed ,no need drive/power supply only plug in✅Quality testing:All of our products will be tested before shipping.Notice:Please allow slight deviation of measurement due to manual measurement.Due to different producing batches, product details might be a little different.Due to different s and different light, the picture may not reflect the actual of the item.Please consider the actual sizes shown in the listing as the pictures are generally enlarged to show detail.