An optical cassette includes a body defining a first termination region defined at the first end of the body; a second termination region defined at the second end of the body; a cable routing region disposed at a first level of the body; an optical splice holding region disposed at a second level of the body; and an optical coupler holding region disposed at the second level of the body. The first level is defined by a base of the body and the second level is defined by a divider tray that pivots relative to the body.