Antronix brand devices most highly respected in the broadband industry for over 35 years. Eclipse Contact Technology (ECT) F-ports - Provides 400% more contact surface area for lower contact resistance and higher reliability. 6kV ring wave surge protection - All coaxial ports are protected against multiple 6 kV ring wave surges per IEEE Spec C62.41. Digital broadcast and HDTV ready - Compatible with existing and future networks. Zinc Alloy diecast housing and backplate w/ proprietary Nickel Alloy Plating - Superior corrosion resistant plating.