... TypeUSB 2.0data transfer rate4000(KB/s)Speedread 7-18M, write 3-12MData retentionover 5 yearsOperating Temperature 32°F to 140 ... in 4 days. Customize: 1) Print Customer's logo on Usb Flash Drive. Printing Method: Color Print, Silk Print, Laser, Press etc ... and creatives: beautiful look designed , personalized, mini, portable The USB flash drive never only be file storge,but also a agile artwork ...