Tripp Lite's SmartRack Fixed Heavy-Duty Shelf SRSHELF4PHDTM accommodates tower units monitors and other equipment. The fixed heavy-duty shelf offers 25.5 inches of shelf depth and supports up to 250 lbs (113.4 kgs) SRSHELF4PHDTM is designed for 4-post toolless rack mounting.N/AN/AIdeal for adding extra flat surfaces or shelf space in 4-post rack enclosuresN/ASupports a load of up to 250 lbs (113.4 kgs)N/A25.5 inch shelf depth (fully closed) / 40.75 inch shelf depth (fully open) to accommodate a wide variety of equipmentN/AVented design increases airflow to sensitive equipmentN/AHeavy-duty cold-rolled steel construction with black finishN/ASnap-in toolless mounting