The Clarity® family of 110 blocks combines Category 6 and 5e performance with the ease and reliability of 110 termination and installer friendly features all within the traditional 110 block footprint. Clarity blocks are available in 50, 100 and 300-pair sizes, providing designation areas and rear cable entry. Clarity 6 blocks use a signal feedback technique internal to the C6110C4 connector to control crosstalk without compromising impedance. Clarity 6 and Clarity 5E block kits include base wiring block, 110C connecting blocks and label holders for designation.