Alcatel 644-0040-001 ES-37J SNPQAUB6AA Central Processing Unit

Alcatel 644-0040-001 ES-37J Central Processing Unit (CPU) SNPQAUB6AA is a processor card designed for the ES-37J family of Alcatel‑Lucent enterprise systems. This CPU module serves as the main controller for its ES-37J chassis, handling core processing and system coordination for the associated boards within legacy Alcatel-Lucent deployments. In refurb listings it is commonly identified as the ES-37J-1 CPU and carries alternate internal codes such as SNPQAU/B6AA or T26012, reflecting revision and catalog variations across retailers. The SKU 644-0040-001 unambiguously identifies this ES-37J CPU, and it is typically sold for use with compatible ES-37J boards within the Alcatel-Lucent enterprise ecosystem. Availability is shown from specialty refurbishers and distributors listing the part under the ES-37J-1 CPU designation, and operation generally requires the matching ES-37J chassis and compatible daughter cards within a supported environment.