Compact desktop UPS with silent alarm provides battery backup support for your home/office network system or digital signage components. Features Compact Desktop 450VA/255W Battery Backup for PCs, Home Theater and Digital Signage The standby BC450 UPS system provides reliable battery backup and AC power protection against blackouts, brownouts, overvoltages, surges and line noise that can damage valuable electronics or destroy data. The eight-outlet 120V battery backup is ideal protection for your home office, media center or professional kiosk, security and small-business applications, including computers, routers, printers, HDTVs, Blu-ray players, game consoles, ATMs, security systems, phone systems, wireless hotspots and digital signage equipment.Allows Time to Back Up Critical Files During a Blackout Backup support allows you to work through short power failures and gives you enough time to safely save files and shut down your system in case of a prolonged blackout. Backup time varies according to load, but the BC450 should keep an energy-efficient desktop computer with small LCD monitor powered as long as 18 minutes. During normal operation, incoming utility power keeps the replaceable internal battery fully charged, so backup power will always be available.Automatically Turns Back On After Power Is Restored Battery-independent restart ensures automatic UPS power-up without user interaction after lengthy power outages, even when batteries are expired and require replacement.8 NEMA 5-15R Outlets Protect Your Computer and Other Connected Components Four 5-15R outlets provide battery backup and surge protection for your computer, monitor and other crucial components. The other four 5-15R outlets provide surge suppression only for printers, scanners, speakers and other desktop equipment regarded as non-essential during a blackout.316 Joules Fight Back Against Unexpected Power Surges A 316-joule surge suppression rating protects connected components from the harmful effects of power surges.Combats Electromagnetic Interference That Can Harm Equipment Various electromagnetic and radio sources found in virtually every home and business can cause disruptive interference on the AC line. Known as EMI (electromagnetic interference) and RFI (radio frequency interference), this line noise is a common cause of performance problems and can lead to incremental hardware damage, data corruption and audio/video transmission problems. The BC450 incorporates technology that filters out disruptive line noise so that it won't affect your equipment.Home-Friendly Alarm and Diagnostic LED Report Real-Time Status The UPS remains silent in both line and battery backup modes. The alarm sounds only to report low battery, excessive load or fault condition. An LED indicator points out operating mode and fault status at a glance.High-Efficiency Operation Helps You Save Energy and Cut Costs A high >98% efficiency rating reduces BTU emissions, energy consumption and, ultimately, your energy costs.Compact Housing for Convenient Installation Almost Anywhere The space-saving ABS housing fits on a desktop, shelf or anywhere else convenient to your workstation or home theater. Keyhole mounting tabs on the rear allow easy wall-mount installation. The five-foot power cord with NEMA 5-15P plug connects to any compatible AC outlet.