Seagate Expansion 640 GB USB 2.0 Portable External Hard Drive ST906404EXA101-RK
Buy new: $79.95 / Used from: $64.99
Usually ships in 1-2 business days
640GB External Portable Drive...Seagate external portable drives are compact and perfect for on-the-go. Instantly add more storage space to your computer and take large files with you when you travel. Setup is straight forward, simply connect a single USB cable and you are ready to go. The drive is powered from the USB cable, so there is no need for an external power supply.
Seagate Expansion 640 GB USB 2.0 Portable External Hard Drive ST906404EXA101-RK