The Memorex 64GB USB 3.1 is a sleek black external drive that is compatible with laptops, PCs, and Macs. With a read speed of 500MB/s and a transfer rate of 150 Mbps, this USB 3.0 drive offers fast and efficient data storage and retrieval. It features a storage capacity of 64GB, with writable formats including Blu-ray BD-R Dual Layer and CD-R. Additionally, it is powered by USB and comes with a 1 year manufacturer warranty, making it a reliable and convenient option for expanding storage capacity.