"L-com's Keystone Category 5E 110 Punch down style connectors offer an economical choice the popular 110 punch down style connection system. Each jack is color coded for both the EIA/TIA568 A and B standards for compatibility with any installation. We also offer a selection of jack colors to fit individual installations. A shielded version is also available to 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!"