Benefiting from a high quality design, the IEC C7 Furutech FI-8.1 connector incorporates high-performance components to ensure excellent conductivity. Thus, the connector contacts are made of a Copper Alloy with gold plating and α (Alpha) treatment. This treatment consists of a first cryogenization step and a second demagnetization step, which increases the conductivity of the contacts.

The connector body is made of Nylon. In addition, this FI-8.1(G) incorporates a brand new cable holding and resonance control system, all in a more compact format ideal for use in confined spaces.