- 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