Furutech GTX-D NCF(R) Ultimate Nano-Crystal Rhodium-Plated AC Duplex Receptacle RATING: GTX-D NCF(R) - 20A 125V. Furutechs Top-Tier GTXD NCF Receptacles...Refinement has a New Name... Nano Crystal Formula (NCF) - Nano Crystalline, Ceramic and Carbon Powder Incorporated into select Furutech products, Nano Crystal Formula --- NCF iscomprised of a special crystalline material that has two active properties.First, it generates negative ions that eliminate static and secondly, it converts thermal energy into far-infrared. Furutech then combines thisremarkable crystalline material with nano-sized ceramic particles and carbonpowder for their additional Piezo Effect damping properties. The resulting Nano Crystal Formula is the ultimate electrical and mechanical damping material  only found in Furutech products! The Pure Transmission MissionThe GTX-D NCF manifests a devotion to best performance in every element of ACand signal transfer. Considering that what you actually hear is in a very realsense the direct product of the incoming AC then the final few feet are ofprime importance for best performance. Of course everyone would love to make pure-copper receptacles, but its malleability  lack of stiffness  makes pure copper a poor choice. Thats why youll find phosphor bronze or brass in most receptacles. Furutechs intenseengineering scrutiny has resulted in an industry-first, a technique allowing usto use special Furutech rhodium-plated  (Alpha) pure copper conductorsstrengthened and sprung by our innovative nonmagnetic Stainless Steel ConductorSpring System that keeps a firm grip yet wont damage male connector blades ortheir plated surfaces. But what really sets the GTX-D NCF receptacle apart isNCF  Furutechs ultimate damping material - Nano Crystal Formula eliminatesstatic, interconverts thermal, mechanical and electrical energy and dampsvibrations. The GTX-D NCF can be summed up in a word; virtuoso!