Floor-standing rack enclosure server cabinet for accomodating 42U of standard 19-inch rackmount equipment in harsh environments NEMA 12 (IP54) Protection Rating: Sealed, locking cabinet protects against dust, dirt, drips and splashes Zone 4 Seismic Rating: Heavy-duty, torsion-resistant construction withstands jolts and vibrations Adjustable mounting depths from 4’ to 37’ and a 3000 lbs. weight capacity 12 high-performance fans maintain ample airflow to keep equipment cool