UniFi - Power Redundancy

UniFi SmartPower technology optimizes your network to maximize uptime and resiliency through advanced power redundancy and distribution units.

Uninterruptible Power and Redundancy

UniFi has created the SmartPower RPS and RPS Pro to protect supported UniFi devices from sudden power supply unit (PSU) failure. These power backup units continually monitor all attached devices and provide automatic failover to ensure the network continues to operate without interruption. They are perfect for powering a failed device while waiting for a replacement.

Power Backup (USP RPS)

The SmartPower Power Backup features 950W of DC power availability and supports connection with (6) compatible devices. 

Power Backup Professional (USP RPS Pro)

The SmartPower Power Backup Professional features 1,250W of DC power availability and supports connection with (8) compatible devices. In addition, its 48V DC port enables integration of an external battery to continue powering the network during complete outages (UPS). Finally, an additional 110V AC outlet is the perfect opportunity to power an ISP modem for maximum network resiliency.

Compatible UniFi Devices and Power Requirements

Rack-mounted UniFi gateways, Network Video Recorders, and Professional/Enterprise switches all support a SmartPower port, compatible with the RPS and RPS Pro. 

Click here to view compatible devices and their power availability.
Model 52V DC 12V DC
UDM Pro 0W 50W
UDM SE 220W 0W
UXG Pro 0W






USW Pro 24 0W


USW Pro 48 0W


USW Pro 24 PoE 400W


USW Pro 48 PoE 600W


USW Enterprise 24 PoE 400W


USW Enterprise 48 PoE 720W


USW EnterpriseXG 24 0W


USW Pro Aggregation 0W


Power Architectures

Click here to learn how networking architecture can provide varying levels of protection against power failure.
Note: We recommend case 2 and case 3 for maximum resiliency. 

Case 1: Protected Against Internal Power Supply Failure



Case 2: Case 1 + AC Circuit Failure



Case 3: Case 1 and 2 + Interruption of Utility Power


Power Backup States

Click here to learn the potential states of the RPS and RPS Pro.

RPS State

UniFi Network Port Icon / Event





Controller-Icon-Disconnected.png  LCM-Disconnected.png

The USP cable is not connected or is not fully inserted.

 Connecting Controller-Icon-Disconnected.png LCM-Searching.png

The USP cable is connected, but the RPS (Pro) has not successfully negotiated with the attached device. This may indicate that the attached device is not fully booted.


Controller-Icon-Connected.png LCM-Connected.png

The RPS (Pro) is ready to provide backup power to the connected device.

Delivering Power




The RPS (Pro) is currently delivering backup power. The connected device may be experiencing an internal power supply (PSU) failure, or has lost its AC power.

Insufficient Power Availability

Controller-Icon-Warning.png LCM-Insufficient-Power.png

The RPS (Pro) does not have sufficient power availability to provide backup power to the device on the indicated port. This is because the RPS (Pro) is already delivering power to one or more other devices. See the Power Overload section for more.

Power Overload



Check the device connected to the indicated port to make sure there is no short circuit. After making the necessary adjustments, click the "reset" icon found in the port properties panel of the UniFi Network application. See the Power Overload section for more.

PSU Power Overload



Check the interruption of utility power on the attached devices. If there is no power outage in the RPS (Pro)'s power source, the USP-RPS will automatically try to recover the attached devices by the priorities and recorded topology. See the Power Overload section for more.


Controller-Icon-Disabled.png LCM-Disabled.png

Disabled ports won't provide power to connected device.

Power Overload

Single Port Power Overload

To prevent short circuiting, the RPS (Pro) monitors power continuously. If the power limit threshold is exceeded, the RPS (Pro) will cut off power on the port to protect the device and the port's circuit.

PSU Power Overload

The primary purpose of the RPS (Pro) is to recover the device experiencing the internal power supply failure. Overload may occur multiple devices simultaneously experience a power interruption and their power requirement exceeds that of the RPS (Pro)'s power availability. In this case, power will be provided according to the priorities listed below.

Priority Level Model
1 (Critical) UDM Pro, Gateway series
2 (High) UNVR, UNVR Pro
3 (Normal) USW Professional and Enterprise Series  

Uninterruptible PoE

The Mission Critical (USW Mission Critical) features an integrated 368Wh lithium-ion battery making it an excellent option for providing power redundancy to UniFi Door Access or other key PoE devices. It has (4) GbE PoE++ and (4) GbE PoE+ RJ45 ports and supports 120W of PoE availability. Furthermore, there are (2) 110V AC outlets which are perfect for providing power redundancy to both an ISP modem and network gateway.

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