- CMR CAT6 UTP 500 MHz, No Spline, Black, 1000 Feet - Exceeds TIA 568-C.2-1 Category 6 standard - Easy to dispense cable with pull box design, saving your time and energy on the job site - Convenient sequential footage markings for usage tracking - Riser flame retardant rated required in most commercial installations - ETL verified TIA/EIA 568-C.2 for guaranteed performance - UL listed - Packaged in a pull box