Grandmax CAT6 550MHz Shielded Solid Bulk Cable, 1000ft, STP Pull Box, CMR Rated, 100% Pure Copper, Multiple Colors Available, 4 Pair, 24 AWG/ 1000FT/ BLUE CMR Rated, STP, Solid, Category 6 Cable Compliant with ANSI/TIA-568-C.2 Standards 24 AWG Tested to 550MHz, ETL Verified UL/CSA Listed 100% Pure Copper