500GB USB 2.0 DT ABS USB2 EXT B/U Award winning and easy to use, the ABSplus is the perfect solution for your backup and storage needs. With this portable model, you get plenty of extra storage, effortless backup and disaster recovery. Upon initial connection, the ABSplus BounceBack Professional software makes a complete backup of all files, applications, and operating system on your PC to the ABSplus drive. This creates a bootable ABSplus drive. Each time the unit is plugged in, the ABSplus automatically scans your source drive and copies only those files that have been changed or newly created since the last backup was performed. With a USB 2.0 data transfer rate of up to 480 Mbp/s (275MB per minute), the speed is blazing! The ABSplus backup solution provides easy recovery from even the worst data catastrophes.