Middle Atlantic CSA-22 Rack Chassis Support Brackets
Overview
The Middle Atlantic CSA-22 provides a pair of 22-inch chassis support brackets designed to bear the load of heavy rackmounted equipment that cannot self-support on rear rails alone — think deep chassis, unmanaged switches with rear connections only, or gear with limited rack-ear integrity. At 100 lb capacity per pair and a 22 in (55.9 cm) depth, the CSA-22 works where most standard 1U shelves add too much overhead or block airflow beneath a chassis. The 1.75 in profile keeps it to 1U vertical footprint, and four mounting points distribute the load evenly across the bracket. Finish is black powder-coat, consistent with standard rack interior aesthetics. This is a mounting solution for integrators who need to secure deep chassis equipment in open-frame or enclosed rack enclosures without relying solely on front-panel ears.
Compatibility
The CSA-22 is engineered for use within Middle Atlantic rack systems, including the BGR, ERK, and FF series open-frame racks and enclosed rack cabinets that use standard EIA-310 hole spacing. The 22-inch depth targets equipment in the 20–22 in chassis range — common in network switches, UPS units, patch panels with deep rear terminations, and analog video distribution amplifiers. Confirm your rack's interior depth and usable rail-to-rail clearance before ordering; the bracket itself is 3 in wide, so factor that against any side-mount cable management already installed. For shallower chassis or lighter loads, Middle Atlantic offers shorter CSA variants — the CSA-22 is the right choice when you specifically need rear-rail-depth support at or near 22 inches.
Installation Notes
Brackets install at four mounting points per pair — two per bracket — using standard rack screws (not included). Position at the same RU as the chassis you're supporting, sliding the bracket under the chassis side rail before securing to the rack upright. Shipping weight is 3.2 lbs (1.5 kg) for the pair; plan accordingly if shipping to a job site as part of a kit. No tools beyond a standard rack screwdriver are required for installation.
