This unbranded external modem designed for computers with serial RS-232 ports. With a sleek design and compatibility with universal brands, this modem offers a fast 2400 baud connection. Made in USA, this modem comes with one port for easy connectivity. Perfect for older systems that still rely on RS-232 or vintage collectors. Note this modem has been unused for many years, but has been stored in environmentally controlled areas. It includes power supply.