The Middle Atlantic UMS1-3.5 features a universal mounting pattern that holds Extron and other small devices. This versatile mounting pattern allows for the installation of small items in either the front or rear of a rack. It includes counter-sunk holes specifically designed to match popular Extron devices. Constructed from steel and finished with a black powder coat, the UMS1-3.5 ensures durability and a sleek appearance. The package also includes 3/16 length flat head screws, with 16 qty #4 and 4 qty #6, for securely attaching components to the shelf.The Middle Atlantic UMS1-3.5 features a universal mounting pattern that holds Extron and other small devices. This versatile mounting pattern allows for the installation of small items in either the front or rear of a rack. It includes counter-sunk holes specifically designed to match popular Extron devices. Constructed from steel and finished with a black powder coat, the UMS1-3.5 ensures durability and a sleek appearance. The package also includes 3/16 length flat head screws, with 16 qty #4 and 4 qty #6, for securely attaching components to the shelf.