Furutech makes a wide variety of OEM parts known the world over for their quality and superb sound. The Furutech engineers examine every part of the signal and power path no matter how small and optimize each and every connection. Take for example their RCA connectors. Furutech’s beautiful finished, beautiful sounding RCA connectors are the result of meticulous engineering and careful audition of various suitable materials. The FP-120R features a solid α (Alpha) – OCC center pin for minimal impedance and a super Fluoropolymer resin insulation and locking collet housing. Furutech FP-120R features α (Alpha) -OCC Conductor center pin Rhodium Plated Fluoropolymer Insulation Copper Alloy body and locking collet housing Connections: Soldered Specified for cable diameters up to 12.3mm Dimensions: 13.9mm ± 0.1mm diameter x 59.6mm ± 0.1mm overall length approx Visit the Furutech website.