Increase usable storage density in a Lenovo ThinkSystem ST250 V2 system with a backplane kit built for four 3.5-inch hot-swap bays. By supporting both SAS and SATA media, it gives infrastructure teams flexibility to match capacity, performance, and cost targets without changing the server platform. Hot-swap architecture matters when maintenance windows are tight. This kit helps simplify drive replacement and reduces disruption during service events, making it a practical choice for environments that need local storage with predictable field serviceability. It is well suited to small and mid-sized deployments that want to keep data close to the server while maintaining a tidy, service-friendly chassis layout. For procurement teams, the value is in fit and purpose: a Lenovo option designed for the ST250 V2 family, rather than a generic substitute that can complicate integration or support. For operations teams, the benefit is straightforward expansion with the right mechanical and interface compatibility for the platform.