Check the listing for details. 10PCS D-Type RJ45 Coupler, Shielded RJ45 Panel Mount Connector, CAT6/CAT5E/CA.... Color: Black, Condition: New. Listed at 67.19 USD. 【EXTENSION CABLE】RJ45 D-type extender is an ideal choice to extend two network cables to form a longer network cable, which can be used to protect the device interface and extend the life of the device. 【EASY INSTALLATION】Standard D-Series Connector for Panel Mount Installations, RJ45 female to female field installable coupler, no soldering, no installation tools. Adapt to a variety of harsh environments, acid, alkali, oxidation and so on. the stability of the current. 【DURABLE QUALITY】The copper needles uses brass solid terminals and the surface is gold-plated. Zinc alloy material, scratch resistance, superior construction for reliable connectivity of the RJ45 extender. 【WIDELY APPLICATION】D-type RJ45 female to female PCB signal panel coupler provides a direct cat5/5e/6 ethernet connection for data in home or industrial environments. 【ANTI-INTERFERENCE】The inner pins is copper with gold-plated for better electronic conductivity, completely shielding interference, making the transmission faster and more stable.