The 320GB 2.5" Ultra Portable S257B External Hard Drive USB 2.0 Red is quite a useful piece of equipment. This Portable External Hard Drive allows the user to back up or store important information separate from the main internal hard drive， which could become compromised by online or offline activities. Sensitive documents， large music files， DVD images， movies， disk images， and even a backup of the contents of your main internal hard drive， can all be kept securely and safely on an external hard drive. It is portable and operates on a plug-and-play basis. The External Hard Drive is a snap to transfer huge files back and forth from work to home. Just plug in the interface cable to quickly reconstruct a working environment， making your favorite programs virtually portable.                                    Features            Compatible with USB 2.0 and USB 1.1 standards<br>Windows 98 / 2000 / ME / XP / VISTA. Mac compatible<br>High speed data transfer UP to 480 Mbps<br>Suitable for all types of 2.5" SATA / IDE hard drive<br>One LED indicator for data transfer<br>Supplies a convenient and easy way to take your data with you anywhere you go<br>High reliability to shock and vibration Features<br>Large storage support<br>No external power required<br>Easy to install<br>                                                            Specifications                       IC          301        <br>          Speed          1500 MB/s        <br>          PCB Size          Small PCB        <br>          Surface painting          Pressing / Sandblast / Silk-screen        <br>          Capability         320GB        <br>          Interface          USB 2.0        <br>          Dimension          6.73" x 5.59" x 1.61" (L x W x H)        <br>          Hard Disk Speed          5400 RPM         <br>          Power supply          USB port power supply directly        <br>                                                              Package Includes            1 x 320GB 2.5" Ultra Portable S257B External Hard Drive USB 2.0 Red<br>1 x USB Cable<br>1 x Wallet<br>                                                            Extra Info            Note:<br>We will provide a fresh guarantee for the protection of the equipments repaired for one year.