The Toshiba Dynabook EX/66M powered by a 2.40GHz Intel Core i5-540M processor, a 4GB of RAM, a 500GB hard drive, a Blu-ray Disc, a 500GB hard drive and The Toshiba Dynabook EX/56M powered by an Intel Core i3-350M processor, a 4GB of RAM, a 500GB hard drive, a DVD Super Multi drive. Both of them has Wi-Fi 802.11 b/g/n, three USB 2.0 ports, eSATA port, the Gigabit Ethernet, 15.6-inch LED-backlighted LCD screen with a resolution of 1366 x 768 pixels, an Intel HM55 Express chipset, an HDMI output, a lithium Ion battery with only 1.8 hours battery life span, and Built-in numeric Keypad.