The HP 600 Redundant and External Power Supply (RPS/EPS) has two different power supplies embedded: one for 12V and the other one for 50V. The 12V power supply is called a redundant power supply (RPS) and the 50V power supply is called the external power supply (EPS). The RPS has six ports offering redundant power to any one of up to six switches. The EPS has two ports and can power up to 24 Power over Ethernet (PoE) ports with full 15.4W PoE power, if only one of the EPS ports is used. Alternatively, it can simultaneously power up to 12 ports with full 15.4W of PoE power on each of two switches if both EPS ports are used. The pair of EPS ports can supply up to 408W of PoE power.