Siren(TM) 3-Way BNC Splitter, BNC Male to 2 BNC Female Y Triple Double Jack Plug RF Adapter Coaxial Cable Connector Converter Coupler 5pack BNC Male To BNC Double Female Splitter Pure brass(Not Alloy) Temp.range:-65~ +165 (PE Cable -~ +85)&lt;br/&gt; Impedanec:50ohm | Impedance: 50 Ohm Great for many projects which involves BNC Type connector.Allows an RF signal to be split into two signals,Works well with RG58 and RG59 Cables Package include item:5pcs They can be used to split a CCTV or video signal ,for distribution to multiple devices or locations,all citizens band communication systems,mobile radio equipment, ship to shore communications, landing systems and ground control apparatus,easy to use easy to operate, plug and play