Optical cassettes are adapter panels installed with factory terminated MTP multifiber fanouts. The cassettes can be snapped into most Hubbell fiber patch panels, enclosures or cabinets that accept FSP series adapter panels. These cassettes provide significant installation labor savings because connector termination is not required in the field. The fanouts are housed in a durable metal cassette and are terminated at the rear to a 12 fiber MTP ribbon connector (two 12 fiber MTP connectors for the 24 fiber LC cassette). Factory assembled MTP to MTP ribbon cables are also available, with a pulling grip attached at one end, for easy pulls through conduit and inner duct. Cassettes will not fit into the FTU2SP, FTU4SP or FCR350SP54R cabinets and enclosures