Tested and working. Does not come with power supply or operating system. Battery will not hold a charge. This Dell Latitude D600 notebook features an Intel Pentium M processor with a speed of 1.70 GHz, 1 GB of RAM, and a 40 GB HDD storage capacity. The laptop has a 14-inch screen and a gray color. It also has an Intel GPU and a 10/100 LAN card.The notebook is a part of the Dell Latitude series and was released in 2007. However, note that the operating system is not included. The laptop has a parallel port for connectivity.