This Vertiv rack PDU (rPDU) distributes power to IT equipment while giving administrators local and remote visibility into power usage, with accurate (±1% per ANSI/IEC) measurement, a high-contrast LCD display with an orientation sensor, and a hot-swappable, upgradeable monitoring module. It is individually tested for UL, RoHS and TAA compliance and is backed by a limited warranty. This model (VP4N20A1): Monitored Unit Level EC, 20A, 120/208V.