CPR-1821-4M1 providing up to 1820W of fixed output power. CPR-1821-4M1 adopt full digital control design, the performance more perfect, transmission efficiency faster. CPR-1821-4M1 follow Intel standardizing CRPS form factor. The product has 80 Plus Platinum certified approved, its efficiency can reach 94% high efficiency. CPR-1821-4M1 equipped with a I2C serial bus interface and supports the PMBus 1.2 communication protocol, which can provide real-time information on power output, voltage, electric current and temperature information while the equipment is operating. The CPR-1821-4M1 has internal OR’ing and active uniform current functions. CPR-1821-4M1 provides unlimited N+1 redundancy functions. The product applies for Embedded server, Storage..etc.