The Microsoft Wired Desktop 500 PS/2 Keyboard really adds to the comfort of your typing experience. With the easy-to-press keys and a direct keyboard access to the most commonly used tools including the web home page and email among others, the keyboard has 103 keys in all. It supports the operating systems Windows XP and Windows 2000 Professional. The stylish shape and compact size lets you fit the keyboard conveniently anywhere. Also, its reliable battery life makes it a really durable product with a low requirement of maintenance or even change of battery. You can attach it to your computer or even to a PS/2 system.