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 colour code network cable connections. Backed by StarTech.com's Lifetime Warranty. Rated to 350Mhz which exceeds Cat 5e standards. Enjoy the low cost savings of buying bulk. Backed by StarTech.com lifetime warranty. Ideal for network installation at home, office, or educational institution. CMR rated for use in walls, conduit, ceiling and other vertical applications.