Aarntech (Tm) High Quality 16gb Crystal Lipstick Case Jewelry USB Flash Memory Drive Necklace Pretty Cool Lipstick design Easy plug and play installation Interface: USB 2.0; Capacity:16GB Reading Speed: 12MB/sec, Writing Speed: 4MB/sec Compatible with Windows 7, Windows XP, Windows Vista, Mac OS 10+ and Linux; Hi-Speed USB 2.0 port required for high speed transfer