Power Distribution Units (PDUs) are highly-reliable devices that deliver conditioned power to multiple pieces of networking, server or telecom equipment. PDUs, on its own, do not generate conditioned power. Instead, it delivers conditioned power supplied by a UPS system or a generator-supported wall outlet. A single PDU can be connected to a single UPS system (in smaller networks) or multiple PDUs can be connected to a single, large-capacity UPS system (in centralized data center applications). PDUs feature multiple outlets to accommodate the growing power needs of densely-packed rack applications, some with as many as 80 or more input plugs to connect. PDUs can be mounted in a variety of horizontal or vertical configurations for secure, permanent installation.