This 3Y YM-2821A is a high-quality power module that offers a maximum power of 820W. It is designed to be used in a 2U server and comes with hot-plug redundant features. The unit type is a module and it is suitable for use in power supplies, computer components, and networking devices. The model number is YM-2821A and it is perfect for those who require a reliable power supply for their server or networking equipment.