Abstract: A cable outlet box for in-wall installation is disclosed that is particularly well suited for optical fiber cable network applications. The outlet box is larger than conventional outlet boxes in the transverse direction, to allow optical fibers to be maintained with a bending radius that is greater than the optical fiber's minimum bending radius, the minimum radius beyond which damage to the optical fibers can result. The depth of the outlet box is selected to allow installation within walls without protruding from a wall. Cable retainers, about which an excess length of cable may be coiled, extend inwardly from the rear panel into the outlet box. An extension ring, similar to conventional extensions rings, but adapted to attach to the larger outlet box, extends through the wall panel thickness for recet of fixtures such as fiber optic connector strips, low voltage copper communications strips, audio, video, security or other such cabling.