CyberPower B603MGY Essential Surge Protector, 900J/125V, 6 Outlets, 3ft Power Cord 6 Outlets, 3 Foot Cord, 900 Joules of protection - Protect home and office computers, electronics, and home theater equipment Automatic Shutdown - Protects connected electronics with the integrated circuit breaker which automatically switches off in the event of an overload. EMI/RFI Noise Filter - Maintains clean power for connected equipment by filtering out electromagnetic and radio frequency interference to improve picture and sound quality. Keyhole Slots - Enable the model to be placed on a wall, under a desk, and in other configurations to optimize space and keep power cords out of the way. Limited Lifetime Warranty - $50,000 Connected Equipment Guarantee