This LC fiber optic connector is a duplex connector used for 2mm jacket

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250ft 2C 12AWG In-Wall Bulk Speaker Cable CMR - White tools This LC fiber optic connectorThis bulk in wall speaker cable is made from oxygen free multi stranded copper cable to capture all highs & lows for optimum audio performance. It is typically run in walls and used to connect speakers to amplifiers. Physical Characteristics Cable Length 250 foot [76. 2m] Color White Number of Conductors 2 Conductor Temperature Rating 20? ~ 75? Wire Gauge 12 AWG Conductor Material 100% Bare Oxygen Free Copper (OFC) Stranding 65 * 30AWG Jacket Material