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Designed for optimal performance, 4XEM's 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/CAT6 connecting hardware specifications. They also features dual-color coded labeling made for both 568A & 568B wiring schemes. These keystone jack modules will work with all 4XEM wall plates or any conventional keystone and angled multimedia wall plate or patch panel.