Check the listing for details. 3Ghz Premium F-Type Coaxial Ground Block, Dual. Condition: New. Listed at 0.99 USD. Don't risk your electronics against a lightning storm! These High-Performance F Grounding Blocks will make sure your entire system is protected. For use in CATV and Satellite Subscriber Grounding applications. Designed for High-Frequency Broadband Network and Distribution System Applications up to 3GHz. Excellent Digital-Ready Broadband Performance. Weather-Resistant Nickel-Plated Zinc-Alloy Cast Housing to ensure performance & durability. Precision machined threads ensure secure splice-to-connector interface for maximum connectivity. Details: Silver-Plated Phosphor Bronze 360-Degree Round Seizing Center Contact Nickel-Plated 3/16" Steel Ground Screws Ground holes accept 8 AWG copper wire Includes nickel-plated steel mounting screws UL Listed High 8-Ampere DC Continuous Current Handling Capacity Do you have question regarding the compatibility or functionality of this product? Or are you looking for another cable, connector, or peripheral device? Please contact us and we will work with you on a one-on-one basis to resolve any dilemma you have and find the product that you need! Listing and template services provided by inkFrog