07/09/2026
A UPS and a PDU do two different jobs, and most racks need both.
UPS: protects your kit, riding through power cuts so nothing drops out unexpectedly
PDU: distributes that protected power, feeding every device cleanly from one feed
One keeps the power on and the other makes sure it reaches everything.
Our latest blog explains how they work together and how to size them as a pair: https://www.comms-express.com/blog/pdu-vs-ups/