Our HD8² High Density Fiber Optic Patching system is specifically designed for ease of installation and economy of space. The smaller square cassette utilized in our design, versus the typical flat wide cassette, lends itself to a smaller profile. The cassettes come with a snap on pulling eye cap. The pulling eye cap snaps onto the front of the cassette and acts as both a pulling eye and a cover to protect the internal connectors. These MDC cassettes come in 12 or 18 port configurations.