B-Line Eaton series open racks, Steel, Flat black powder coat finish, 200 lb load capacity, Four mounting spaces required, Double sided rack mounted

The SB596V23153SFB double sided rack shelf is rated for 200 lb. That is a solid steel shelf, so it will take stacked or non-rack-mount gear (UPS bricks, media converters, test equipment) rather than just light patch gear. The shelf itself weighs 18.5 lb.

Four mounting spaces (4U) of rail are needed for this shelf. Its overall height is 6 inches, so budget a full four-space block on the rack front before you lay out your gear above and below it.

The shelf measures 6 in height, 30 in length/depth and 23.31 in width. The 30 inch depth is the giveaway that this is a double sided shelf: it is meant to span a two-post open frame rack and carry equipment on both faces, not to hang off a single set of front rails. Make sure you have at least 30 inches of clear depth around the rack and room for the 23.31 inch overall width before ordering.

A double sided shelf like the SB596V23153SFB mounts through the rack and supports equipment on both the front and rear faces, which is what you want on a free standing two-post open frame rack in the middle of a room. If your rack is against a wall and you only ever load from the front, a single sided cantilever shelf is the simpler pick and takes less floor depth than the 30 inches this one occupies.

Solid, not vented. The SB596V23153SFB is a heavy duty solid steel shelf, so equipment that pulls cooling air down through its base will not get airflow from underneath. For heat producing gear sitting directly on the shelf, use a vented shelf instead.

Steel with a flat black powder coat. That matches the standard flat black used across the Eaton B-Line open frame rack line, so it will blend with existing black racks and cable management rather than standing out as a gloss or grey piece.