L-com's shielded, keystone Category 5E 110 Punch down style jack is color coded for both EIA/TIA568 A and B standards for compatibility with any installation. This shielded Cat 5E 110 keystone jack offers maximum protection from EMI/RFI interference. By utilizing fully shielded jacks and connecting hardware, you can reduce the effects of interference on the network data transmissions. Large volume quotations are available for installers and contractors looking to save money. Contact us today!