The MSI MAG A550BN PC Power Supply Unit is a new and sealed product that delivers a maximum power output of 550W. This 80 PLUS BRONZE certified unit is designed by MSI to provide reliable and efficient power supply for your computer system. With the model specifically labeled as MAG A550BN, it is compatible with the same model and offers a sleek design as a system power device. Whether you are building a new computer or upgrading your current setup, this MSI power supply unit is a great choice for those looking for quality and performance.