FSRA is a fixed shelf rail adapter designed to enable rack mounting of fixed shelves and angle supports onto standard mounting rails such as the C4PR and CLSR. Constructed from 12-gauge steel and finished in smooth black powder paint, the adapter maintains the weight load capacities of compatible shelves and angle supports. The FSRA adapter kit includes four brackets and sixteen 10-32 screws with cage nuts for complete installation. It is compatible with fixed shelves (RF, RZVS, RASC models) and angle supports (RASA model), making it a versatile solution for equipment rack configurations. The product is RoHS compliant, TAA compliant, and manufactured in North America, ensuring quality and regulatory adherence for data center and telecommunications infrastructure applications.