Chocolate Bar USB Flash Drive - Data Storage Device - 4GB - Key Ring Included USB specifications 1.0, 1.1, 1.2, 2.0 compliance support, plug and play Transferring rate up to 480 Mbit per second at high speed (Depends on different PC configuration) At least 10 years of data retention with 1,000,000 times storage Compatible with Windows 7, Windows XP, Windows Vista, Mac OS 10+ and Linux; Hi-Speed USB 2.0 port required for high speed transfer Compact and convenient data transfer