The open sides of this 19 inch AV equipment rack increase airflow to promote passive cooling while keeping your equipment securely mounted. This mobile 15U open frame network rack provides an adjustable mounting depth from 22 to 40in and supports a static load of 1200 lbs (544 kg). With its open frame design and cable management hooks, the 4 post open frame server rack gives you easy access to your computer equipment from all sides. The portable free-standing data rack features casters along with leveling feet, providing ease of mobility around your office or server room and can fit through standard doorways. StarTech.com offers a 2-year warranty and free lifetime technical support on this rolling server rack.