The CablesAndKits Cat6 110 Type Keystone jack supports both T568A and T568B wiring with a 4 x 4 termination layout. To terminate use a 110 punch down tool. This keystone jack is 8P8C and is completely backwards compatible with lower rated cables including Cat5e. The jack itself has gold plated contact pins and utilizes a printed circuit board design. This design provides for superioir quality and maximum performance. Compatible with standard surface mount boxes, keystone wallplates, and patch panel blanks.