Tripp Lite by Eaton UPS 550VA 300W Standby UPS - 10 NEMA 5-15R Outlets 120V 50/60 Hz USB 5-15P Plug Desktop/Wall Mount - Tower - 4 Hour Recharge - 1.20 Minute Stand-by - 120 V AC Input - 120 V AC Output - 10 x NEMA 5-15R UPS offers standby protection for PCs and peripherals to prevent data loss and system downtime by providing battery-supported AC output during brownouts and blackouts. Two of the 8 output receptacles are widely spaced to accommodate large transformer plugs. Four outlets with full battery support and surge suppression protect computers monitors and other vital system components from loss of power. Four additional outlets with surge suppression-only are ideal for printers and other accessories not requiring battery support. Single-line telephone suppression jacks protect modem or other peripherals with a standard dialup or DSL phone line connection. HID-compliant USB interface enables integration with built-in power management and auto-shutdown features of Windows and Mac OS X. Audible alarm and front panel LEDs offer status information regarding line and battery power operation. 550VA/300 watt power handling ability supports entry-level PCs for up to 17 minutes during power failures.