PCMall.com has the Seagate 500GB External US 2.0 Portable Drive, model no. ST905004EXA101-RK, for $77.99 (115.99 – 38 instant savings) with Free Shipping for a limited time. The drive is powered from the USB cable, so there is no need for an external power supply. Saving files is easy too, just drag-and-drop. It’s not just easy to use, but it’s fast and energy efficient too. Enjoy fast data transfer speed with USB 2.0 connectivity. Built-in power management ensures energy efficient operation and supports Windows and Mac OSX.