Hi-Speed USB 2.0 compliant and USB 1.1 backwards compatible
Easy Plug and Play installation
Ultra-Portability
Support 2.5" Hard Disk Drive up to 250GB
Additional software pack :StoreJet elite (helps you manage your data)
OneTouch Auto-Backup function
Powered via the USB port. No external power or battery needed
LED indicates power on and data access
Warranty : 2-years

To ensure the StoreJet 2.5 receives a sufficent amount of stable power while in use, Transcend recommends that you plug in the USB-Y cable/'s connectors to your computer, it will supply the StoreJet 2.5 with adequate power for normal operation. Please also avoid using a USB HUB when connecting StoreJet25 to your computer to avoid the possibility of insufficient power supply.

Dimensions : 129mmx79.9mmx13mm
Operating Voltage : DC 5V from USB port
Operating Temperature : 5°C (41°F) to 55°C (131°F)
Weight : 86g (Without HDD)
Interface : USB 2.0
Hard Drive Type : SATA HDD