This is a 3ft RJ-45 (male) to RJ-45 (male) blue straight FTP plenum-rated copper patch cable. The Cat6 cable is a standardized twisted pair cable for Ethernet or other physical network layers. Cat6 standards specify performance of up to 250MHz. This plenum-rated cable is the only cable allowed in spaces defined as air plenum-rateds, such as raised flooring systems and air handling ducts. plenum-rated cables must self-extinguish and prevent re-ignition. Unshielded twisted pair patch cables are perfect for data centers, LANs and other short range network connections. Our patch cables are 100% compliant for all of your networking needs. Our products are guaranteed by federal law to not affect or void OEM warranties.