1.Metal key usb memory stick flash drive 4gb 2.4gb memory 3.High Speed USB2.0, 4.6 year factory expereince ... 5.1 year warranty Metal key usb memory stick flash drive 4gb Specification: Memory:1GB 2GB 4GB 8GB 16GB Speed: High-speed ... and play, hot-swappableEndurance: 1,000,000 times rewritableApplicable models: the various brand PC and compatible computers, Macintosh, PowerBook, iMAC or ...