The OCC Category 5e Keystone Modular Jack is a great alternative for high-density applications. Featuring a low profile, snap-in design and support for universal T568A/B wiring, the KMJ Cat5e jacks by OCC offer exceptional performance that exceeds industry standards. OCC’s patented PC board technology provides component compliance to Cat5e specifications. Economy version Keystone jacks are also available that utilize a leadframe design and meet Cat5e link performance.