B-Line Eaton series open racks, Steel, Telco gray powder coat finish, 12-24 panel mounting holes, 45 mounting spaces, Top channel style, Seismic Zone

It stands 96 inches tall and provides 45 mounting spaces (45U) of usable equipment height. Check your room: a 96 inch frame plus overhead ladder rack or cable tray above it needs real ceiling clearance, and you also need clear height to tip and stand the frame up during install.

The SB5877096TG is built as a Seismic Zone 4 network bay open duct rack, which is the highest of the legacy seismic zones, and it is UL Listed. Zone 4 performance depends on the frame being anchored to the floor per the manufacturer's detail, so plan on floor anchorage and, where the design calls for it, top bracing to overhead ladder rack.

The frame is 23 inches wide and 96 inches deep on its stated footprint dimensions, at 96 inches tall. An open two-post style frame like this one has no side panels or doors, so you work from front and rear and need aisle clearance on both faces rather than door swing clearance.

It is fabricated from 11 gauge steel, which is the heavy-gauge end of open frame rack construction, and the assembled frame weighs about 124.88 lb. That mass and gauge are what carry a full 45 spaces of loaded network gear without rail deflection. Anchor it to the floor before loading.

An open duct rack like the SB5877096TG is the right pick for a secured, dedicated telecom or MDF room where you want maximum airflow, full access to both sides of the gear, and easy vertical cable management, with no doors or panels in the way. Go to an enclosed cabinet instead when the equipment sits in a shared, public, or dusty space and needs to be locked and physically protected, or when you need controlled front-to-rear airflow. Open racks also cost less floor time to install and terminate.

The SB5877096TG is the frame itself, an 11 gauge steel open duct rack with 12-24 tapped rails. Vertical cable managers, horizontal wire managers, power strips, shelves, floor anchors and 12-24 rack screws are separate items, so add them to the order if the room does not already have them. Budget the 12-24 screws by the box based on how many panels you are hanging.

Top channel means the frame is closed across the top with a channel rather than left as two bare uprights. It ties the posts together, stiffens the bay, and gives you a surface to land overhead cable runway or ladder rack and to bond the frame. It is also what lets multiple bays be ganged into a continuous row with the tops aligned.

The finish is Telco gray powder coat on steel, the standard shade used across Eaton B-Line series open frame racks, so a new bay lines up visually with existing B-Line Telco gray frames in the same row. Powder coat also holds up better than paint against the scuffing that comes with sliding equipment in and out.