About this item Surge protector: This surge protector can withstand surge discharge current and will immediately open the switch to safeguard your receiver, set-top box, TV, and other valuable equipment in your home from lightning strikes. High-quality material: Made from high-quality nickel-plated brass, this surge protector is durable and resistant to corrosion, ensuring long-lasting performance. Wide application & Low loss: Suitable for CATV, MATV, SATV, cable networks, satellite TV, and cable TV among others, this surge protector has low return loss and can be remotely powered via a DC socket. Improve the problem of TV noise: If you are bothered by hum, noise, or scrolling lines on your TV, this surge protector can enhance the audio-visual experience and help you enjoy a more comfortable life. Cost benefit: Lightning strikes or accidental surges can lead to damage to your expensive equipment. This high-quality yet affordable surge protector effectively minimizes losses, making it a