Toughbook CF-31 is a guarantee that the mobile workforce always operate with optimum efficiency. The CF-31 is a hefty small suitcase, measuring 2.9 by 11.9 by 11.5 inches and weighing 8.8 pounds, complete with a pull-out carrying handle on its front edge. The CF-31's ports and pieces are hidden behind hinged doors or panels that snap shut with a secure click. On the Toughbook's left side are the double-latched battery pack and a cupboard door revealing the modular DVD±RW drive; PC Card, ExpressCard, and Smart Card slots; and an SD memory card reader. On the right are the removable 250GB hard drive (320GB in current models) and HDMI, Ethernet, and two USB 2.0 ports plus the AC power connector. Two more USB 2.0 ports, a docking station connector, a VGA port, and headphone and microphone jacks are at the rear, along with a serial port.the dual-core Core i5-540M-equipped CF-31 with 4GB of RAM proved to be no speed demon, but a tolerable, faster-than-a-netbook performer for everyday purposes.