A telecommunications assembly, comprising: a chassis including a top, a bottom, a front opening, a rear opening, and first and second transverse sides (22, 24) extending between the front and rear openings (30, 26), the chassis defining a plurality of mounting locations; a module defining a front wall and a rear wall, the module configured to be slidably received within the chassis through the front opening at one of the mounting locations, the module removable from the chassis through the front opening, the module including a fiber optic splitter; and an adapter assembly defining at least one fiber optic adapter, the adapter assembly configured to be slidably received within the chassis through the rear opening at one of the mounting locations, the adapter assembly removable from the chassis through the rear opening, the at least one fiber optic adapter configured to mate a first fiber optic connector with a second fiber optic connector; the module including at least one first fiber optic connector that protrudes from the rear wall of the module that is adapted to be inserted into the at least one fiber optic adapter of the adapter assembly when the module is inserted into the chassis for mating with the second fiber optic connector; wherein a first fiber optic signal carried by the second fiber optic connector is passed from the second fiber optic connector to the at least one first fiber optic connector and an optical fiber cable carrying the first fiber optic signal extends from the at least one first fiber optic connector to the fiber optic splitter, and the fiber optic splitter splits the first fiber optic signal into a plurality of secondary fiber optic signals carried by cabling exiting the module through the front wall of the module. a chassis including a top, a bottom, a front opening, a rear opening, and first and second transverse sides (22, 24) extending between the front and rear openings (30, 26), the chassis defining a plurality of mounting locations; a module defining a front wall and a rear wall, the module configured to be slidably received within the chassis through the front opening at one of the mounting locations, the module removable from the chassis through the front opening, the module including a fiber optic splitter; and an adapter assembly defining at least one fiber optic adapter, the adapter assembly configured to be slidably received within the chassis through the rear opening at one of the mounting locations, the adapter assembly removable from the chassis through the rear opening, the at least one fiber optic adapter configured to mate a first fiber optic connector with a second fiber optic connector; the module including at least one first fiber optic connector that protrudes from the rear wall of the module that is adapted to be inserted into the at least one fiber optic adapter of the adapter assembly when the module is inserted into the chassis for mating with the second fiber optic connector; wherein a first fiber optic signal carried by the second fiber optic connector is passed from the second fiber optic connector to the at least one first fiber optic connector and an optical fiber cable carrying the first fiber optic signal extends from the at least one first fiber optic connector to the fiber optic splitter, and the fiber optic splitter splits the first fiber optic signal into a plurality of secondary fiber optic signals carried by cabling exiting the module through the front wall of the module.