I love this device.I got this for 445 rs.The Drive is about 3 centimeters long and about 2 centimeters wide. There is a full size USB 3.0 connector on one end. The center of the drive has a metal ring that allows you to attach a lanyard if needed. Switching the drive over to the OTG connection reveals a full size micro USB connection ready to go.
It can be converted to any format li fat32, NTFS. The cap of this device is 28.9 gb. The drive was capable of 110 - 120 MB/s read and 15-20 MB/s write.
When I use it with my mobile to play lage size movies there are really no issues at all.
Its good people should buy this if they really need a otg device.