The OPTIPOP R 6339, by US Conec, is a dry cloth style, cost-effective fiber optic cleaning tool for male MTP/MPO/MPO connectors (with guide pins). This cassette-style cleaning tool removes contaminants such as dust and oils that can come into contact with optical-fiber ferrules and degrade signal fidelity. All cleaning components including the cloth are manufactured with antistatic materials ensuring that debris won't be attracted back onto fiber tips. Replacement fiber cleaning cassette reels are available.