Make reliable Ethernet connections in applications requiring CMR-rated cable. The WIR5ECMRWH 1000 ft Cat 5e Riser Bulk Cable meets or exceeds all Cat 5e specifications to ensure reliable Ethernet network connections, & 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 & means that you can cover the exact distance required for your installations. This Category 5e cable has been tested for CMR riser installations, & is ideal for in-wall, between floor & elevator shaft cable runs where CMR fire rating is required. Star Tech.com Cat 5e cables are manufactured using high-quality copper conductors. While many cable manufacturers offer a "cheaper" cable, based on a copper-coated aluminum core, Star Tech.com makes no compromises on quality to ensure you receive top value & 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 (Po E). Because Star Tech.com use a high quality copper wire, Star Tech.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 & potentially, fire.