Specifications, Features and Review of the Lightest USB 3.0 Flash DrivePQi Co introduces its latese USB 3.0 flash drive model named Cool Drive U339V Traveling Disk. The all new PQi Cool Drive U339V Traveling Disk is designed to offer best data transfer performance with the USB 3.0 interface.Cool Drive U339V Traveling Disk from PQi just measures about 13g in weight and is considered to be one of