Get your hands on a piece of computing history with this vintage Microsoft Windows NT Server 4.0 operating system. This brand new, sealed retail unit comes with the English language CD format and is designed for use with Windows operating systems. Suitable for up to 5 devices, this unit has a minimum processor speed of 486 33Mhz and requires a minimum of 16MB RAM and 125MB hard drive space. The Microsoft Windows NT model is a must-have for any computer enthusiast, and this brand new unit from the United States is a rare find.