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 This 1000 foot roll of unshielded (UTP) Cat5e cable uses stranded conductors and features 350MHz bandwidth capacity. Stranded conductors are more flexible and less prone to breakage than solid conductors, making stranded cables well suited for less permanent runs and for connecting client computers. This cable carries a CM fire safety rating, which means that it is safe for use within the walls of commercial buildings.Monoprice Cat5e and Cat6 cables are made of 100% 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.