Increase your productivity with the new Express ST1 line. Regardless of the enclosure type you choose, the USB 3.0 ST1 uses the new ToggleModeTM DDR (double data rate) flash at its core to give you up to 90MB/s read and 16MB/s write performance. It's perfect for streaming HD content or working with any other large file formats. Fully backward compatible to USB2.0, the USB 3.0 ST1 gives you the performance of a dual channel drive meshed with the capacity and price points of a single drive. Available in either 4GB or 8GB capacities, the Express ST1 line is light on your wallet and in your pocket.