Abstract: An inlet device is described herein for inserting a plurality of telecommunication cables into a telecommunications enclosure. An exemplary inlet device includes a housing, a retention device and a compression member. The housing has a first end and a second end, wherein the housing includes a compressible portion at the second end of the housing and the retention device may be secured to the first end of the housing. The compression member may be fitted over the compressible portion at the second end of the housing and the retention device may be secured to the first end of the housing. The cable retention device includes a rack to discretely hold a plurality of telecommunication cables. The cables may be further secured in the rack of the cable retention device by one or more clamping devices.