N261-025-BK Tripp Lite's N261-025-BK 25-ft. Black Augmented Cat6 (Cat6a) Unshielded (UTP) Snagless patch cable allows 10Gbps data transmission over 4-pair copper. Each Cat6a cable is individually tested and certified on Fluke® test equipment, and the test results are available upon request. Snag-free strain relief boot provides the most secure and accurate connections.