with battery pack Voltage: Computer DC input -18VDC, 1.7A (running)/18VDC, 2.2A (charging) Universal AC adapter - 100-240 VAC 50-60 Hz Battery: Removable rechargeable Nickel Hydride battery pack CPU: 80386SX-20 ( 20/10MHz); 80387SX-20 coprocessor socket RAM memory: 2MB standard (640KB conventional; 1.384MB extended or HardRAM) Memory expandable up to 10MB via one credit card style memory slot when optional 1MB, 2MB, 4MB, or 8MB card is added Video RAM: 256KB Number of keys: 86 Keyboard type: 101