Another best product from sony it is so small and can be hold hi our fist. It is only 2.5 inches in length. Capacity is also very high at 7000 and you got 1000GB. The speed of its transfering file is like lightening fast. Transfer speed is 400MBPS which is too high. It is shock proof and tolarates havy amount of heat. Easy to assemble. It is portable and you can take it anywhere you want becouse it fit in your jeans pocket easily.