The Supermicro CSE-847E2C-R1K28JBOD is a high density 4U storage expansion chassis designed for enterprise data centers and cloud service providers requiring massive scalability. This double sided enclosure supports forty four hot swap 3.5 inch drives, split between twenty four front bays and twenty rear bays, maximizing storage capacity within a standard rack footprint. Engineered for high availability, it features a SAS3 12Gbps dual expander backplane that provides redundant data paths to ensure continuous operation even during component failure. The system connects seamlessly to head nodes via external Mini SAS HD cables, making it an ideal solution for cold storage, data archiving, and software defined storage environments. With redundant 1280W Platinum level power supplies and remote management capabilities, this chassis delivers reliable performance for mission critical infrastructure.