The Yuhai Class 2 Power Supply Model: UHA12-500 is a reliable and efficient AC to DC adapter designed for various consumer electronics devices. This 12VAC 500mA adapter from Yuhai Electronic is a versatile option for powering your devices. The unit is tested and ensures a 1:1 connection split/duplication, making it a dependable choice for your power supply needs. Shipped Free With USPS Ground Advantage. Inv C9