The Memorex USB 3.1 USB Flash Drive 256GB is a brand new sealed product that is compatible with both PC and Mac computers. With a USB specification of USB 3.1, it offers fast read and write speeds of up to 3.0MB/s. The flash drive comes in a sleek black or gray color and includes a manufacturer warranty of 1 year. It is part of the TravelDrive product line from Memorex and features backward compatibility with USB 2.0 and 3.0 interfaces. With a storage capacity of 256GB, this USB flash drive is a reliable and convenient storage solution for all your digital files.