The Novex PowerEase 500 Electrophoresis Power Supply is manufactured by Novex USA. The Invitrogen PowerEase 500 Electrophoresis Power Supply is designed specifically for mini-gel electrophoresis. It offers extensive programming capabilities, including eight pre-set and four custom methods for you to set to your own preferences. The simple, intuitive PowerEase interface is faster and easier to use than traditional "dial-in" power supplies. In addition, PowerEase features: constant voltage, current, or power settings; buffer temperature monitoring capability; "on the fly" program editing; and compatibility with most printers using a parallel port. The pre-owned products will be thoroughly cleaned and fully tested to perform at manufacturer specifications before shipping.