EMC 100-561-054 storage processor node module designed for CX3-20 storage arrays. Features 2GB onboard memory and mounts as a processor component within the CX3-20 controller enclosure. Provides essential compute and cache management for midrange unified storage environments supporting block and file protocols. Compatible specifically with EMC CX3-20 systems; assembly and integration into host controller required. Typical applications include departmental storage consolidation, virtualization host backends, and general-purpose SAN/NAS deployments requiring processor redundancy or replacement. Refurbished unit; tested and guaranteed. Available via quote.