VERSATILE MOUNTING: Ideal for small IT or AV equipment; compatible with 2-post and 4-post racks, fitting most 19-inch EIA standard relay racks ENHANCED AIRFLOW: Vented design promotes airflow and heat dissipation to keep equipment cool CUSTOMIZABLE FLANGES: Flanged down design allows easy access to equipment's front; optional equipment straps slots included STURDY CONSTRUCTION: Made in the USA from durable 16 GA steel, supports up to 30lbs (14kgs) of equipment FITS VARIOUS HOLES: Compatible with round, threaded, and square rack holes for versatile installation