Reliable Power Back Up for All Server IT Equipment Needs IOGEAR Online UPS Battery Back Up GBB1000N - 1000VA/1000 Watts is a high-performance UPS system with NEMA 5-15P input plug and 8 NEMA 5-15R outlets designed for most server rack configurations that support data, network and communication applications. It utilizes true double conversion with up to 100% power factor efficiency for all the power supplied by the UPS for critical IT equipment needs and output voltage regulation provides higher performance for critical applications. The rackmount form factor installs use only two rack spaces (2U). It ships with all mounting accessories for a four-post rackmount installation. Add an External Battery Pack for Extended Runtime Extend runtime on critical systems with a 24V External Battery Pack (GBP24V18AH), a high-performance expandable rackmount external battery pack solution for the Online UPS Battery Back UP GBB1000N. The external battery pack provides extended battery runtime for critical server rack configurations that support data, communication and network applications. An included daisy chain connector to enable the connection of additional compatible 24V external battery packs to primary Online UPS Battery Back Up System. Online UPS Battery Design IOGEAR Online UPS design utilizes true double conversion with up to 100% power factor efficieney over idustry & competitor standards for all the power supplied by the UPS for critical server needs and output voltage regulation provides higher performance for critical applications. The pure sine wave ouput provides clean power source for sensitive and mission critical equipment to keep great performance and prevent unexpected shutdown and damage. Multi-Functional LCD Interface Online IOGEAR Online UPS features multi-function LCD interfaces for displaying detailed information on input voltage, battery capacity, power status, battery status, operation status, assessed backup runtime and more for IT system administrations Double Conversion Pure Sine Wave Output VoltageRegulations