The Hitachi Touro Mobile MX3 is an external hard drive that is commonly used to backup files. This includes important documents, pictures, music, and video. The files are transferred from a main computer system to the external hard drive using a USB 2.0 or 3.0 connection. This makes it easy and efficient for those who have a novice computer background. The Hitachi 1 TB Hard Drive has enough space to store personal files for years to come, which makes it ideal for business owners. The Hitachi Touro Mobile MX3 is portable and can easily be plugged in to move files from an array of different computers. The Hitachi 1 TB Hard Drive can also be formatted for personal computers and Macs. The Hitachi 1 TB Hard Drive requires no external power source and has a data transfer rate up to 5 Gbps with a USB 3.0 connection and 480 Mbps with a USB 2.0 connection. The drive is lightweight and easy to carry weighing a mere 155 g. The drive measures 12.6 cm tall by 8 cm wide by 1.5 cm deep.