... ,500gb,gift, promotional gift, promotional product, promotion gift, memory stick, usb memory stick, u disk, usb pen drive, novelty gift 2.Chip:Rigorous testing ... %13.Storage Relative Humidity: 20% ~ 93%14.Capacity: 128mb 256mb, 512mb, 1gb,2gb,4gb,8gb,16gb,32gb*Portable data storage device ...