L-com's keystone category 5E 110 punch down style connectors offer an economical choice for 110 punch down style connections. Each jack is color coded for both the EIA/TIA568 A and B standards for compatibility with any installation. Additionally, L-com offers a selection of jack colors to fit applications where color coding is required. A shielded version is also available offering maximum protection from EMI/RFI interference. By utilizing fully shielded jacks and connecting hardware, can reduce the effects of interference.