This Sun 300-1800 Power Supply is a reliable and high-quality choice for anyone in need of a server power supply. With a maximum wattage of 1000 W, it provides ample power for even the most demanding applications. The silver color adds a sleek and professional touch to any setup. This power supply is compatible with the Ultra 25/40/45 and is made by Sun, a trusted brand in the industry. Whether you are building a new system or upgrading an existing one, this power supply is a great option. It is sure to meet all your power needs and keep your system running smoothly.