Avoid having excess Ethernet cable lying around by building your own cables to the exact length needed using this Bulk Ethernet Copper Cable from Monoprice! - Unshielded Twisted Pair (UTP) Category 5e Ethernet cable - 24AWG solid, pure bare copper conductors - CMR (Riser) fire safety rating - 350MHz bandwidth - 1000 foot roll 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.