To make external storage easier and more productive, the StoreJet 2.5 SATA HDD features a convenient "OneTouch Auto-Backup" button, and comes bundled with Transcend's own StoreJet elite 2.0 software, which offers a intelligent backup scheduling, security, and power saving functions. The StoreJet 2.5 SATA is available in a colorful assortment of eye-catching, polished aluminum cases including: Silver (80GB), Titanium (120GB), and Blue (160GB). Additionally, the StoreJet 2.5 SATA is available as an external enclosure without a HDD, which also comes in silver, blue or red. The enclosure is 100% compatible with all brands of 2.5" SATA hard drives. Transcend's StoreJet 2.5 supports all commonly used operating systems, like Windows® 2000 / XP / Vista, Mac™ OS 9.0/OS X, and Linux™ Kernel 2.4, or later. With its sleek form factor and versatile, high performance functions, the StoreJet 2.5 is the perfect portable data storage solution that can help you manage, organize, and take control of your digital world.