VERSATILE: Our Keystone Jacks work perfectly with wall plates and patch panels with standard keystone ports. COMPATIBLE: Ethernet coupler Keystone Jacks are designed for CAT5E cable connections; Backward compatible with older networks. COMPLIANCE: Exceeds EN 50173 and ISO/IEC 11801 standards for CAT5E SOLID CONNECTION: Nickel plated contacts and easy Snap-In retaining clip ensure a secure and corrosion-free connection EASY INSTALLATION: Snap-In Keystone Jack is fast and handy reducing installation time EFFICIENT: The superior shielding prevents the signal loss and crosstalk from EMI/RFI interference.