Amazon.com: F Barrel Connector, Ancable 5-Pack Coaxial Cable Extender, Female to Female Coax Barrel Connector, for Indoor Outdoor Coax Cable, Dish Network, Antenna, Satellite Receiver : Electronics
Amazon.com: N Female to N Female, 2-Pack N Barrel Connector Coupler Adapter, 50 Ohm for Wilson Cell Booster, WiFi Antenna, CB Radio, Analyzer, Coaxial Cable : Everything Else
5.5/2.1mm DC Power Jack to 2 Pin Terminal Block Adapter
N Female to N Female Connector RF Coax Cable Adapter Barrel Connectors – ONELINKMORE
Are all coax "barrels" the same? - The Solid Signal Blog
Amazon.com: 10pcs High Frequency 3GHz F81 Barrel Connectors Couplers : Electronics
Amazon.com: XRDS -RF 2PCS N Female to N Female Connector RF Coax Cable Adapter Barrel Connectors Double Female Connector Plug (NOT for TV) : Electronics
Coaxial Cable Extender, 5-Pack F Coax Coupler Barrel Connector Cable Extension f | eBay
30X Directv F81 Female Coax 3GHz F Type Barrel RG6 Splice Connector Nut & Washer | eBay