The Aska "Tripper" is a portable HDD photo storage device. The Tripper has a built in HDD of 2.5 inch 20GB, Type 2 CF slot and rechargeable built in lithium ion battery with USB interface. The compact Tripper with 20GB HDD weighs 300gms with dimensions -91 (W) X 138 (D) X 33 (H) mm. The tripper can easily transfer photos from the CF card with simple button operation. There is no need for a PC. Due to its light weight, compact size the device can be used with a laptop also. It is very easy to carry around. Since the tripper is USB enabled it can be used as an external hard disc also. You can also transfer images from the PC –just drag and drop. With the optional CF conversion adapter you can use smart media / memory stick /SD memory cards also.