Make reliable Ethernet connections in applications requiring CMR-rated cable. The WIR5ECMRWH 1000 ft Cat5e Riser Bulk Cable meets or exceeds all Cat 5e specifications to ensure reliable Ethernet network connections, and features a durable white PVC jacket that enables you to color code your network cable drops as needed for a more organized installation. Bulk packaging is perfect for custom length runs and allows you to cover the exact distance required for your installations. This Category 5e cable has been tested for CMR riser installations, and is ideal for in-wall, between floor and elevator shaft cable runs where CMR fire rating is required. StarTech.com Cat5e cables are manufactured using high-quality copper conductors. While many cable manufacturers offer a \"cheaper\" cable, based on a copper-coated aluminum core, StarTech.com makes no compromises on quality to ensure you receive top value and performance for your network cable investment. This Cat 5e cable is constructed with 24 gauge copper wire, to support a broad range of Ethernet applications such as Power over Ethernet (PoE). Because StarTech.com use a high quality copper wire, StarTech.com cables easily sustain the power required for Power over Ethernet applications, whereas the inferior quality offered by copper-coated aluminum cables may be subject to insufficient power delivery, heat buildup, equipment damage and potentially, fire.