Western Digital WDXMS2500TN Passport 250 GB USB Portable Hard Drive

Light and rugged, the Passport USB Portable Hard Drive is easy to carry and no external power adapter is needed. Sync & encryption and Google software is included. Carry important files and e-mail between work and home or on the road Share large files between office and home, between PC and Mac Back up your existing notebook hard drive for extra data

Features

1. 250 GB USB 2.0 2.5-inch external hard drive ideal storage solution for Mac or PC
2. USB connection; requires no external power source;128-bit encryption for data security
3. Included Google software for searching and managing files
4. Features glossy black design
5. Measures a 0.59 x 5.1 x 3.14 inches (HxLxW); weighs less than 4 ounces
6. Capacity (GB) 250
7. Interface USB 2.0
8. Spindle Speed (RPM) 5400
9. Average Seek (msec) <12
10. Track-to-Track Seek Time (typical read, ms) 2.0
11. Access Time 5.0 ms
12. Data Transfer Rate on USB 2.0 Up to 480 Mb/sec

The size and weight of an 80GB iPod is 4.1 x 2.4 x 0.41 inches (H x W x D), weighs 4.9 ounces.

Compare that with the dimensions of this external hard drive: 0.59 x 3.14 x 5.1 inches (HxWxD); weighs less than 4 ounces.