The Vertiv Geist Monitored Rack PDU family delivers reliable power distribution with the ability to monitor input power to plus or minus 1 percent accuracy and provide environmental monitoring capabilities. The upgradeable, hot-swappable IMD enables seamless upgrades and replacements. Fault-tolerant daisy chaining can link up to 40 devices to provide redundancy. All units come with patented U-Lock receptacles to prevent unintentional dislodging of power cords. Vertiv Geist Monitored Rack PDUs come with VLC, which enables fast, secure communication with mobile devices. All units are individually tested, with no batch tests, and UL-listed, meeting an important requirement for many data centers and insurance providers. This model (VP4551V) is 60A, 208V Delta, 17.2kW in a vertical form factor, with 12 Locking IEC C13 and 12 Locking IEC C19 outlets.