TRIPP LITE's N230-100 CAT 6 RJ45 plugs can be used with solid or stranded conductor CAT 6 wire. Included load-bars add to ease of termination and virtually foolproof results. Staggered up-down design for enhanced performance and reduction of Near-End Cross-talk (NEXT). 50 μin gold contacts for durability and longevity. Polycarbonate housing, UL94-V2.