Excalibur EXC4 4GB USB 2.0 Mini Hard Drive Excalibur EXC4 4 GB USB 2.0 Mini Hard Drive General Features: 4 GB capacity Ultra portable and lightweight USB 2.0 high speed (up to 480 Mbps) USB 2.0 USB 1.1 compatible USB connector retracts and swivels Anti-vibration and heat dispersion Plug-and-Play Bus powered PC, Mac and Linux compatible Dimensions: 2.5 x 1.9 x 0.6-inches (L x W x D, approximate) Regulatory Approvals: