USB flash drive USB 3.0 interface.Capacity of 32G High speed data fer performance . Our pen drive read speed is 8-35mb/s(The rate of performance depends on the different operation system available and various flash adopted,maybe you can get 40M+)The larger the capacity, the faster the read and write speed;Hot plug and play. Hardware Requirement: PC with USB connection,Notebook,10 years data retention.More than 10000 times of usage .Solid State Storage, Shock proof and electromagnetic proof Colour:random colors, don't accept the specified color Material:plastic Package Contents: 10 * USB Flash Drives Only 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.