Designed for optimal performance, 4XEM's Cat5e RJ45 110-Type 90 Degree Punch Down Keystone Jacks are perfect for any UTP Ethernet cabling environment. The patterned printed circuit board construction is fully compliant with UL-certified ANSI/EIA/TIA CAT5E connecting hardware specifications. It also features dual-color coded labeling made for both 568A & 568B wiring schemes. This keystone jack module will work with all 4XEM wall plates or any conventional keystone and angled multimedia wall plate or patch panel. 4XEM gear is respected industry wide for its high performance, premium quality and durability.