This is a GigaBase 2 CAT5e Jack in Blue. Features include: IDC contacts that are phosphor bronze with tin plating; nose contacts which feature 50-micron gold plating over 100-micron nickel underplating; easy terminations using a 110 tool; termination retention stuffer cap provides strain relief while enabling you to easily check terminations. All jacks feature a keystone style for snap-in installation. CAT5e models are labeled with both T568A and T568B wiring schemes. GigaBase2 Jacks work with GigaBase CAT5e cables.