i-Disk Backpacker has a very delicate book-leaf box package for collection purpose and comes in 4GB-16GB.*Created based on the concept of vinyl toys, i-Disk Backpacker is aimed to make USB flash drive a collectable item while in use for everyday life.Compliant with USB 2.0/1.1OS support:Windows ME/2000/XP/Vista/Windows 7; Mac 10.x; Linux 2.4 and above USB Specification: USB 2.0