These RCA T8 Solder connectors from Viablue feature a high quality design. They feature 24k gold-plated contacts for enhanced conductivity and resistance to corrosion and oxidation. The matte black aluminum body of these connectors also gives them a high level of durability and modern aesthetics. Mounting is by soldering, while two M4 1.5mm hexagon socket screws hold the cable and connector securely in the body. The Viablue T8 Solder connector accepts cable diameters from Ø4mm to Ø9.5mm, depending on the use of the reducer supplied.