SRS4-14 SRS4-14 Sliding Rail System 14 space, 4 slide 250 lb. capacity - Middle Atlantic's SRS Sliding Rail System pulls out a full 19" to provide rear access to components with shallow depths. Measuring 19" deep, the unit locks closed with included hardware and includes a rear pair of 7 space 10-32 rack rail. For effective cable management, an optional triple-hinged, full-width cable carrier is offered. Middle Atlantic Products