Transparent USB3.0 hard drive enclosure 2.5 inch professional hard drive enclosure, brings amazing SuperSpeed experience. 2139U3 is made of transparent ASB fireproof material with blue LED indicator, being the beautiful ornament on your desktop. USB3.0 to SATA3.0 5 Gbps transmission USB3.0’s theoretical transfer rate is up to 5 Gbps, 10 times faster than USB2.0; SATA3.0’s theoretical velocity reaches up to 6 Gbps, setting aside more time to do what else you want. Support UASP protocol New UASP protocol improves transfer speed, reduce the utilization of CPU, data delay and waiting time. Renew your old hard drives Put old 2.5 inch hard drive into hard drive enclosure to be your mobile database, renewing old notebook hard drives.