The Boxed Hornby R8013 HM2000+ Add On Power Speed Controller is a quality product designed for model railway enthusiasts. This analogue speed controller, suitable for 12V voltage systems, is compatible with DCC control systems and is specifically designed for OO gauge model trains. The sleek black design adds a touch of sophistication to any train layout, making it a must-have for collectors and hobbyists alike. With the trusted Hornby brand behind it, this speed controller ensures smooth and reliable control of your model trains.