This vintage Microsoft Bus Mouse is a great addition to any collection of computer hardware. With its unique design and classic white color, this mouse is sure to stand out. It features two buttons and mechanical tracking method for accurate and reliable use. The mouse is compatible with PS/2 and serial (RS-232) connectivity, making it a versatile option for a variety of systems. Its ergonomic features make it comfortable to use for extended periods of time. The mouse is brand new and comes with its original box, manual, and accessories! The box shows some light wear from age as seen.