When mobile, things are bound to happen when you take an external hard drive with you. The Lacie 250GB Rugged All-Terrain External Hard Drive is designed to deliver a hard-drive for versatile use on and off roads, with connectivity to Macintosh or Windows PC. The exclusive creation of world-renowned designer Neil Poulton, this portable storage solution offers the supreme speed of FireWire 800 along with FireWire 400 and Hi-Speed USB 2.0 interfaces for true universal connectivity. Conveniently bus-powered and plug & play, it's ideal for backup, video storage and large data volume exchange on the go. Simply plug it into just about any computer anywhere for backup, video storage and large data volume exchange. Its unique scratch-protected aluminum shell and shock-resistant rubber bumper make the LaCie Rugged Hard Drive especially resistant to harsh elements for extra protection along the road of your adventures. Average Seek Time (Write) - Less than 12ms Cache - 8MB or greater Maximum Drop Height - 35 / 90 cm in non-operating mode (dropping is not recommended in operating mode) Software - LaCie 1-Click Backup Software (Windows / Macintosh OS 10.2 or greater) Silverkeeper for automatic backup and file verification with Mac OS 9 & Mac OS X Driver-free for Windows XP, Windows 2000, Windows Vista and Mac OS X; Silverlining for Windows 98SE, Windows Me, and Mac OS 9 Compatible with Mac OS 10.x / Mac OS 9.x; Windows 2000 / Windows XP / Windows Vista / Windows 98SE / Windows Me Unit Dimensions - 3.5 x 1 x 5.7 / (90x25x145mm) Weight - 8.8 ounces / 250 grams