Easy plug and play installation Interface: USB 2.0; Capacity:8GB Compatible with Windows 7, Windows XP, Windows Vista; Hi-Speed USB 2.0 port required for high speed transfer Swarovski Crystals Cute Heart Shape design Baby color:silver It may not work property on Mac. It has up to 8GB storage capacity High speed 2.0 data transfer It comes with a beautiful necklace attached to it!