The WIRC5ECMRGRY Cat5e 350MHz Solid UTP Cable (Gray) is CMR rated for use in walls, conduit, ceilings, etc. and is packaged as a 1000-foot bulk roll. The cable features a gray PVC jacket, which provides both flexibility and durability, while making it easier to color code network cable connections. Backed by StarTech.com’s Lifetime Warranty. The StarTech.com Advantage Rated to 350Mhz which exceeds Cat 5e standards Enjoy the low cost savings of buying bulk Convenient measurement of cable runs