The Ubiquiti Networks hot-swappable power supply with the designation UACC-PSU-27V-250W is a 250W standby power supply module intended only for UISP Power Professional backup system. The source can be used for 250W redundancy or to increase the output power up to 480W. The output voltage of the module is 27V DC and the maximum current is 9.3A. The input voltage is connected thanks to the IEC C14 power connector.