RG58 Coax 50 ohm Plenum Cable
The connector typically used on this wire is BNC-RG58-PL.
This cable works for antenna hookups in wireless networks and is also good substitute for the Thinnet™ wire.
This wire has a Plenum jacket, see CAB-RG58-ST for a PVC 50 ohm cable.
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RG59 75 ohm Coax Plenum Cable