CablesOnline, 10-PACK CAT6 Female/Female RJ45 Ethernet Yellow Keystone Jack Coupler, WP-C02YL-10 10-Pack female/female keystone couplers, Gold plated contacts For use with unshielded twisted pair (UTP) Cat.6 cable Cat6 performance is in compliance with ANSI/TIA/EIA 568 B.2 standard Plastic housing; EIA/TIA approved; UL Listed 568 A/B color coded;Straight-through wiring;Color: Yellow