Philips SPN5040A/19 is a surge protector designed to safeguard your home theater system from electrical surges and voltage spikes. It features advanced technologies like Power Blocker circuitry, which automatically shuts down power to the system to prevent subsequent surges. With 1000 Joules of surge protection, it can handle significant power surges, ensuring the safety of your valuable electronics. The surge protector also comes with four protected outlets, a 2-meter power cord, and built-in cord management for a clutter-free setup.