SOUTHSKY Audio Converter, Stereo Analog to Digital Converter Adapter, 3.5mm Aux Jack R/L 2 RCA Cinch to SPDIF,Toslink, Optical,Coaxial Converter: Amazon.com: Industrial & Scientific
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415-0028-006 Cinch Connectors | Cinch Connectors Male SMA to Male BNC Coaxial Cable, RG316, 50 Ω, 152.4mm | 886-1020 | RS Components
Cinch SMA Male to SMA Male Semi-Rigid .085 25 Ohm Coax Cable RF Loop | eBay