Data storage specialist Verbatim today introduced its SureFire line of portable hard-drives. These palm-sized, portable HDDs come with storage capacities of 250, 320, and 500 GB, and boast of two interfaces: USB 2.0 and FireWire 800, making it out of the box compatible with PCs and Macs. It measures 81 x 128 x 15 mm, and weighs in at 186 g. Enclosed in it, is a 2.5 inch hard drive with 5400 rpm spindle-speed and an 8 MB cache. It draws its power from an AC adaptor, though when used with USB 2.0, it can rely on the port for all its power. The Verbatim SureFire is compatible with Mac OS X Leopard's Time Machine backup application. Backed by a 3-year warranty, these drives go for US $109.99, $139.99, and $179.99 for the 250 GB, 320 GB, and 500 GB models, respectively.