A rack cabling system comprising: - a rack; - a first hardware component mounted on the rack; - a patch panel housing mounted on the rack adjacent the first hardware component, the patch panel housing populating no more than a three rack unit, RU, space, with the front end of the patch panel housing being aligned with a front end of the first hardware component; characterized by - a first connector coupler plate provided at the patch panel housing, the first connector coupler plate having a first position and a second position adjacent the first position; - a first and second cable harness (241, 242) extending from the first hardware component, each of the first and second cable harnesses (241, 242) including a group of individually channeled fiber connectors terminated on a group of cables at a first end of the harness and a multi-fiber connector at an opposite second end of the harness, the cables of the group of cables at the first end each having differing lengths and each cable being progressively longer with respect to an adjacent cable at the first end of the harness and the length of each of the cables (241, 242) comprising the second cable harness being longer than each of the cables comprising the first cable harness - the first hardware component having a first and second area (271, 272) for connecting the first end of each cable harness (241, 242); - the first cable harness having its first end mounted to the first hardware component in the first area on the hardware component and the multi-fiber connector of its second end terminated at the first connector coupler plate in the first position,the first cable harness being routed with three bends or less of the cables from the first hardware component to the first connector coupler plate; - the second cable harness having its first end mounted to the first hardware component in the second area on the hardware component and the multi-fiber connector of its second end terminated at the first connector coupler plate in the second position off-set from the first position, the second cable harness being routed with three bends or less of the cables from the first hardware component to the first connector coupler plate; - wherein a minimum amount of slack is provided in each of the first and second cable harnesses (241, 242). - a rack; - a first hardware component mounted on the rack; - a patch panel housing mounted on the rack adjacent the first hardware component, the patch panel housing populating no more than a three rack unit, RU, space, with the front end of the patch panel housing being aligned with a front end of the first hardware component; - a first connector coupler plate provided at the patch panel housing, the first connector coupler plate having a first position and a second position adjacent the first position; - a first and second cable harness (241, 242) extending from the first hardware component, each of the first and second cable harnesses (241, 242) including a group of individually channeled fiber connectors terminated on a group of cables at a first end of the harness and a multi-fiber connector at an opposite second end of the harness, the cables of the group of cables at the first end each having differing lengths and each cable being progressively longer with respect to an adjacent cable at the first end of the harness and the length of each of the cables (241, 242) comprising the second cable harness being longer than each of the cables comprising the first cable harness - the first hardware component having a first and second area (271, 272) for connecting the first end of each cable harness (241, 242); - the first cable harness having its first end mounted to the first hardware component in the first area on the hardware component and the multi-fiber connector of its second end terminated at the first connector coupler plate in the first position,the first cable harness being routed with three bends or less of the cables from the first hardware component to the first connector coupler plate; - the second cable harness having its first end mounted to the first hardware component in the second area on the hardware component and the multi-fiber connector of its second end terminated at the first connector coupler plate in the second position off-set from the first position, the second cable harness being routed with three bends or less of the cables from the first hardware component to the first connector coupler plate; - wherein a minimum amount of slack is provided in each of the first and second cable harnesses (241, 242).