Monoprice™ 23AWG Cat6 550MHz STP Solid, Riser-Rated (CMR) Bulk Pure Bare Copper Ethernet Cable is premium, high-speed cabling designed for use in 1000Base-T Gigabit Ethernet network environments. Constructed using 23AWG solid, pure bare copper conductors with a CMR-rated PVC jacket, it exceeds TIA/EIA 568-C.2 standards and is safe for use in the Riser spaces of commercial class buildings. This cable is ETL listed and RoHS compliant. Features: Shielded Twisted Pair (STP) Category 6 Ethernet cable 23AWG solid, pure bare copper conductors CMR (Riser) fire safety rating 550MHz bandwidth Designed for use in 1000Base-T Gigabit Ethernet network environments Exceeds ANSI® TIA/EIA 568-C.2 standards ETL listed and RoHS compliant 1000-foot wooden spool Monoprice Ethernet cables are made of 100% pure bare copper wire, as opposed to copper clad aluminum (CCA) wire, and are therefore fully compliant with UL® Code 444 and National Electrical Code® TIA-568-C.2 fire and safety standards, which require pure bare copper wire in communications cables.