3000 VA / 2700W Pure Sine Wave UPS Battery Backup Smart-UPS Extended Run Option: Extended run models accept external battery packs (model SMX120BP, sold separately) for a longer runtime, to power critical servers, security, and comm. systems through prolonged outages Input: NEMA L5-30P. Output: NEMA 5-15R (3), 5-20R (3), and L5-30R (1) 2U Rackmount. Rail kit included