Features:<br /><br />    Supports hot plug & play， High speed USB 2.0 port <br />    No physical drive required  <br />    Plug-and-play; no external power supply required， USB bus-powered <br />    Support all current computer systems <br />    speeds vary depending on types of file being transferred and computer configuration. <br />    Read Rate: 12-18 Mb/S    Write Rate:4-6 Mb/S <br />    Interface USB 2.0 <br />    Excellent USB Memory stick in excellent condition <br /><br /> <br />About capacity: <br /> <br />    256GB=approximately 220GB-240GB<br /><br />Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB， 1G = 1000 MB <br /><br />Calculated， operating system with binary arithmetic: 1 MB = 1024KB， 1 GB = 1024 MB; <br /><br />So there are some differences between display capacity and nominal capacity of flash memory products <br /><br /> <br />Package included:<br /> <br />1 X USB flash drive