4 Pair / 24 AWG, CAT5e, Underground, Water Resistant, GEL FILLED. Unshielded, Twisted-Pair, Outdoor, Sunlight Resistant, 300V, Jacket Diameter: 0.215", Color: Black, Reel Length: 1000 ft. Rated for use in Underground Conduit, Direct Burial. CAT5e , also known as Category 5e or Category 5 Enhanced, is a network cable standard ratified in 1999. CAT5e offers significantly improved performance over the old CAT5 standard, including up to 10 times faster speeds and a significantly greater ability to traverse distances without being impacted by crosstalk.