HIGH-DENSITY MULTI-FIBER ADAPTER HOUSINGS

An adapter housing for receiving a plurality of multi-fiber connectors includes a rectangular, box-like housing structure having opposing side walls and a back wall adapted to mount in a 2-U space in an equipment rack, wherein the housing structure has a width of no greater than about 17.75 inches and a height of no greater than about 3.50 inches. A bank of adapters is provided that includes at least one grouping of a plurality of adapters. Each adapter is configured to receive two multi-fiber connectors and is aligned side-by-side in the grouping with major side walls of adjacent adapters facing each other. The bank of adapters includes individual connector-adapter-connector locations of at least 200 adapters configured to receive up to 2400 connector pairs within the housing structure.