This 4GB Chocolate USB Flash Drive works very well on your computer. It is a fun and convienent way to save all of your important documents whether you are at the office or at home. It is also a great gift for friends,family or even significant others so do not pass up this terrific offer! 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.