The Avaya 1151D1 IP Phone Power Supply is a factory-sealed box containing all the necessary components to power and interface with the Avaya 1151D1 IP phone. This product, manufactured by Avaya in China, ensures a reliable and efficient power supply for your business phone system. With an Ethernet interface (RJ-45), this power supply is designed to seamlessly integrate with your existing telecom systems, providing a seamless and uninterrupted communication experience for your office.