Dell TW147 Rapid Rail Kit for PowerEdge R900 (Part #TW147). This rail kit enables tool-free installation of the 4U PowerEdge R900 server into standard 19-inch server racks. The rapid rail mechanism allows single-hand deployment and retraction, reducing installation time and physical labor during data center buildouts. Designed for compatibility with PowerEdge R900 systems, the kit includes all necessary mounting hardware for standard-depth racks. Typical use cases include high-density computing environments, data centers, and enterprise server deployments where quick hardware swaps and maintenance access are required. Tested and guaranteed; available via quote.