Fully functional, very clean, 9 pages manual included (pdf). This DC Power supply model PS500XT-115V by Hoefer Thermo Fisher Scientific powers a wide variety of electrophoresis chambers. Specifications: 500 Volt, 400 MA, 200 Watt. Lead display, metal handle, long grounded power supply that connects to standard North American electrical outlets. Unit measures 4 1/8 X 5 1/8 X 12 and weighs 7.42 pounds.