Online double conversion UPS solution offers power conditioning and outage protection in a compact and flexible rack or tower format. With near unity power factor operation (2U units), the UPS9A provides maximum usable power to your equipment and protects it with a standard 3-year warranty or optional 5-year extended warranty. The 2U model provides scalable battery capacity when extended protection is required; the powerful charger can provide up to 8 amps of current to quickly recharge up to 7 matching battery packs (ordered separately).