The Transcend StoreJet M3 1TB External Hard Drive is a rugged military grade shock resistant device that meets US military’s drop test standards. It is protected by a state of the art 3 stage shock protection system that can survive even in the harshest environments. The hard casing of the portable 2.5inch SATA HDD features an outer shell that is made of a slip resistant silicone. The internal hard drive incorporates a suspension damper. These features all but reduce the damage caused by impacts by providing maximum shock absorption. The external drive’s massive 1TB space can save over 16,000 hours of digital music, 168 hours of 1080p High Definition footage, or more than 480,000 high resolution photos. Physical Features Key Features 216 g. USB 3.0 Compatible with Win OS Compatible with MAC OS It incorporates Transcend’s exclusive Elite data management tools that increase productivity by helping you manage data more efficiently. The convenient, easy to use software lets you compress files with 256bit AES Encryption, perform incremental backups, and convert the hard drive into a digital lock for your computer. It comes equipped with a handy One Touch auto backup button that automatically backs up data and synchronizes it with your computer when used with Transcend Elite software. The Transcend StoreJet M3 1TB External Hard Drive is features the advanced SuperSpeed USB 3.0 interface that enable data transfer speeds that are at least 3 times faster than drives with USB 2.0 models. The improved bandwidth of USB 3.0 makes file sharing quicker and easier than ever with transfer speeds of up to 90MB/s. The device also comes with a USB 2.0 port. It is designed to be compatible computers running on with Microsoft Windows XP, Vista, 7, 8, 8.1, Linux Kernel 2.6.31 or later, as well as Apple computers with Mac OS 10.5 or higher. The portable hard disc drive comes in a range of attractive colors that are sure to catch the eye. It has overall dimensions of 129.5 x 82.4 x 20.4mm, and weighs just 216g, making it highly portable. It can work in temperatures that are as low as 5 degrees Celsius to up to 40degree Celsius. The device is CE, FCC, and BSMI certified.