Okion Digitcopier USB 2.0 Portable Data Copier 

Free up your valuable memory by transferring the stored data to your mass storage device. OTG (On-The-Go) bridge allows you to copy data digitally between two USB enabled protable device, such as MP3 player, digital camera, flash memory drive, etc; via the high USB2.0 speed, all WITHOUT computer system. Simply enough, here is an instant and handy solution for you to copy whatever stored in a USB enabled storage device (source) to another USB storage device (target). One of the many perfect applications would be to copy all the photos inside your camera temporary to a larger capacity USB flash drive, so that you can immediately free up the memory card and continue shotting photos.

Features & Advantages
•  Digital data copying between two USB storage devices totally without computer
•  OTG (On-The-Go) bridge allows useful applications such as copying/backing up data from USB pen-drive, cardreader, USB harddisk, digital camera to another USB mass storage device
•  No more running out of memory, get the data transferred to the target mass storage device
•  Data transfer rate at USB2.0 speed, upto 480Mbits/second

What's OTG?
With OTG bridge you can now transfer data between two USB storage devices even when a PC is not available. For instant, if you have a flash-drive you can now use the OTG bridge to top the files from the digital camera, PDA, or any other device with a USB output port and cable to the flash drive on the go.

Specification
•  Interface: USB2.0 up to 480Mbits/second, backward USB 1.1 transfer rate upto 12Mbits/s
•  Function button: COPY key, Power key, Reset key, Select key
•  Powered by 3 x AAA batteries or optional AC power adapter (sold seperately)