The Avaya Power Supply Unit is designed for servers and workstations. With a maximum power rating of 450 watts, it is potent enough to handle most energy demands. The unit utilizes a proprietary power supply design and has a 24Pin connector type. Although the power supply does not have any Energy Star certifications, it houses three fans for efficient cooling. Please note that specific details such as operating temperature range, time before failure, PSU efficiency rating, and PSU protection are not provided by the manufacturer.