Vextra Cat6 Cable Riser (CMR) Rated. Verified to 550 MHz. Vextra Gray Nested Cat6 Pull Box offers a high-quality American-made UTP Cat 6 cable data wiring. This ETL listed CMR rated cable meets the performance specs of TIA/EIA Cat 6 cable up to 550 MHz. The four conductor pairs are precisely twisted together for the maximum in transmission efficiency and protection from RF interference.
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