RG58

from The Free On-line Dictionary of Computing (8 July 2008)

RG58
thin Ethernet cable

   <networking, hardware> A common, low-impedance (52 ohm),
   quarter-inch diameter {coaxial cable} with {BNC} connectors,
   used for {10base2} {Ethernet} wiring, sometimes called
   "{cheapernet}" in comparison with "full spec" {RG8} cabling.
   A member of the "Radio Guide" series.

   (2002-06-17)