The HP E600 Redundant and External Power Supply (RPS/EPS) has two different power supplies embedded: one for 12 V and the other one for 50 V. The 12 V power supply is called a redundant power supply (RPS) and the 50 V power supply is called the external power supply (EPS). The RPS has six ports offering redundant power to any one of up to six 2600 switches. The EPS has two ports and can power up to 24 Power over Ethernet (PoE) ports with full 15.4 W PoE power, if only one of the EPS ports is used. Alternatively, it can simultaneously power up to 12 ports with full 15.4 W of PoE power on each of two switches if both EPS ports are used. The pair of EPS ports can supply up to 408 W of PoE power.

- Power distribution on an "as-needed" basis: monitors power supplies from connected switch or switches; when power from a switch fails, it provides backup power in less than 1 millisecond. RPS device prioritization: if the internal power supply of more than one of the connected switches fails, redundant power is provided to the highest-priority switch; RPS port 1 has the highest priority, whereas port 6 has the lowest priority. Redundant switch power (six ports): provides redundant power to any one of up to six switch products, backing up the power supply in a switch in case of loss of AC power or a fault condition. External switch power (two ports): provides external power to up to two PoE switch devices through two EPS ports; supports up to 15.4 W per port on 48-port stackable. Hot-plugging: supports changing the configuration of an RPS or EPS cable while the device is powered.
- Power distribution on an "as-needed" basis: monitors power supplies from connected switch or switches; when power from a switch fails, it provides backup power in less than 1 millisecond. RPS device prioritization: if the internal power supply of more than one of the connected switches fails, redundant power is provided to the highest-priority switch; RPS port 1 has the highest priority, whereas port 6 has the lowest priority. Redundant switch power (six ports): provides redundant power to any one of up to six switch products, backing up the power supply in a switch in case of loss of AC power
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- Redundant switch power (6 ports): provides redundant power to any one of up to six switch products, backing up the power supply in a switch in case of loss of AC power or a fault condition.