Pny micro hook attacheacute 20 64gb usb flash drive store transport and share photos music videos files and more features micro hinged hook metallic design only 3930mm long and comparable to the size of a paperclip attach to key chains briefcases purses backpacks and etc so important files are never out of reach compatible with most pc amp mac laptop and desktop computers with available usb 20 port os required microsoft windows 2000 apple