18 AWG, 4 Conductor, Communication Cable, Foil Shield, 500ft or 1000ft Spool | WireAndCableYourWay.com
Micro Connectors, Inc 100 ft. 22 AWG/4 Conductors Gray Stranded Shielded RS-232 Cable M110-4C22G-100 - The Home Depot
GENERAL CABLE, Shielded, 4 (2 Pr) Conductors - Data Cable, Power Limited Cable - 19G434|C0560A.41.10 - Grainger
Custom Cable Connection 22 AWG 4 Conductor Stranded Shielded Plenum Cable White CL3P Jacket for Security/Alarm/Access Control/Sound - 100 Foot Roll in a bag - - Amazon.com
4 Core 24 AWG Shielded Multi Conductor Cable - EIA RS - 232 Manufacturer & Supplier in Belgium