Iwillink Cat6 Coupler RJ45 Cat6 Shielded Coupler [Set of 25] Ethernet Coupler Female to Female Cat6 Keystone Jack STP Keystone Insert Inline Coupler Silver [Condition] Opened for product confirmation, but unused. May have scratches as it was stored at home. .........Quoted from the site product page......... [Product Description] The shielded, female-to-female Cat6 keystone jack easily connects two Cat5e/Cat6 Ethernet network cables. The protective shielded housing reduces EMI/RFI interference. The Cat6 keystone coupler provides solutions for all areas such as voice, home networking, home office, audio/video, etc. The plug contact part uses a phosphor bronze continuous gold plating process, or a fixing clip is provided, ensuring the stability of data transmission while ensuring corrosion resistance, plug resistance, and effectively extending the life of the module. The iwillink Cat6 Coupler RJ45 Cat6 Shielded Coupler is a standardized RJ45 keystone jack, so it has a specific size and shape that is compatible with keystone wall plates or patch panels. Such devices are used for patching from an Ethernet hub to a distribution panel, or for connecting a workstation to a wall outlet. The iwillink Cat6 Coupler RJ45 Cat6 Shielded Coupler meets the Category 6 performance standards compliant with TIA/EIA568. Will be shipped out of the box. 39-58