Aisster 2G/4G/8G/16G GB Swivel Key Flash USB 2.0 Pen Thumb Fold Memory Drive Stick Storage Device Interface: USB2.0 Material: Metal+ABS Plastic Compatible with USB 1.1/2.0 USB 2.0 compatible Plug & play with Windows 2000 / XP / Vista/Window 7, Mac 9.0 or above Please kindly select the capacity and the color according to your needs before purchased,thanks