Modular PDUs have a unique modular architecture designed specifically for the dense data center customers who want to maximize their power distribution and space efficiencies in the rack. This modular design consists of two main building blocks, the Control Unit and the Extension Bar(s). Available in 16A-40A current ratings, each unit comes with one Control Unit and up to four Extension Bars, offering up to 32 outlet receptacles (the 16A model has two Extension Bars, and offers 16 outlets). Providing easy accessibility and reduced cable clutter, the Modular PDUs offer you the flexibility to easily mount your units in several different locations within the rack, without having to sacrifice valuable rack U-space.