1000 FT Bulk Cat6 Ethernet Cable - Solid - CMR-Rated - Black : This bulk Cat6 cable delivers reliable Gigabit network connections, which ensures high-performance capability for your demanding Ethernet applications. The Cat6 cable is riser rated for in-wall installations. This Category 6 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.