4XEM’s 4U 19"wall mounted open rack provides a durable and solid design. The 4XEM 4U open wall mount bracket features heavy gauge material to ensure a stable installation platform. The universal standard design is compatible with 19" equipment from popular manufacturers. The 4U open wall mount bracket also provides a swing hinge to allow for easy installation of equipment and cabling. They are designed specifically for small business, home offices, restaurants, classrooms and IT professionals!