Furutech FI-50M (R) High-End Performance Rhodium-Plated AC Power Connector Piezo Ceramic Series Connectors ? A Furutech First! Furutechs Pure Transmission FI-50M Piezo Ceramic series connector bodies and housings feature several breakthrough construction techniques. A multilayer nonmagnetic stainless steel and carbon fiber shell incorporates a special damping and insulating acetal copolymer. Furutech settled on stainless and carbon fiber for the outer housing after extensive listening sessions with Japanese industry figures and audiophiles. The body of the connectors combines two active materials: Nano-sized ceramic particles and powdered carbon. (Only nano-sized ceramic particles effectively couples with carbon powder.) Nylon and fiberglass are incorporated as well forming an extremely effective, well damped, mechanically and electrically nonresonant connector body. Thats correct, theyre electrically damped as well. Piezoelectric effects are the key. Furutechs breakthrough in design and materials is based on employing nano-sized polycrystalline ferroelectric ceramic particles exhibiting electro-generative properties; mechanical pressure creates an electrical charge forming a bridge between electrical and mechanical oscillation. Carbon powder exhibits thermal-conductive characteristics that interact with the charged ferro-ceramic particles converting their energy into heat thats conducted away and released from the surface of the connector body! These carefully chosen and tested active materials mechanically and electrically damp the connector and receptacle as they interconvert thermal, mechanical, and electrical energy for the finest Furutech Pure Transmission signal imaginable. Type: 2-pole+earth Rating:15A 125V AC (Alpha) Pure copper Rhodium plated Conductor Earth (Ground) Jumper System (US Patent No.: 6,669,491 ) Nylon/fiberglass body incorporating nano sized ceramic particles for absorption of vibration resonance. Multi layered nonmagnetic stainless steel and carbon fiber housing and incorporating acetal copolymer. The best of damping and insulation materials for improvements in frequency extension and tonal quality. Specified for cable diameters from 6mm to 20mm Dimensions: Body length 40.0mm x 40.5mm diameter x 76.2mm overall length Metal cable clamp for improved grip and reduction of mechanically and electrically induced distortion.