Durable data storage: 128GB.USB 3.0 high-speed data transfer performance.Plug and play: No need drive/power supply only plug in.A-class chip: Can be erased repeatedly for 100,0000 times.Support Windows computer systems,Can not support system.Writing speed: 10-20Mb/s , Reading speed: 40-70Mb/s. The rate of performance depends on the different operation system available and various flash adopted, so the speed maybe different.Model Number: metal usb pendriveProduct Type: Flash Disk,Normal,MultifunctionalInterface Type: USB 3.0color:SilverMaterial:MetalPackage Contents:1 x U DiskOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.