The L-shaped bracket is mainly used inside the cabinet, responsible for supporting heavy equipment inside the cabinet, and equipped with screws for easy installation. Note: The installation holes are 60 * 7mm long round holes, which can be adjusted and easy to install. A Network Cabinet, often interchangeably called a server rack, is a physical frame or enclosure designed to house and organize various types of network hardware and accessories. 90°bending, thickened material, arc corner. They look like a chair, and are often used to attach to shelving in a home environment.