The Samsung M321R6GA3PB0-CWMXJ is a 48GB DDR5-5600 registered DIMM with ECC, supplied through our wholesale channel for resellers, system integrators, and IT procurement teams building enterprise server, cloud, database, and AI infrastructure. We stock this part in volume with batch-consistent inventory, so multi-unit orders ship from the same production lot to support matched-set deployments and uniform memory training across channels. Stock levels are confirmed at time of order, and typical fulfillment for in-stock quantities is prompt with tracking provided on dispatch.
As a registered DDR5 module, this part fits only server and workstation platforms that explicitly support DDR5 RDIMMs; it is not backward compatible with DDR4 and cannot be mixed with consumer UDIMMs. Final operating speed depends on the platform and CPU memory controller, so we advise buyers to validate against the server vendor’s QVL before placing volume orders. Our pre-sales team can assist with part-number verification for large configurations.
All units are sourced through authorized channels and ship with full manufacturer warranty support. Our RMA process handles DOA and warranty claims directly with the factory, minimizing downtime for integrators with deployed fleets. Products carry CE, FCC, and RoHS certifications, and export documentation is provided for overseas shipments in accordance with applicable trade regulations.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M321R6GA3PB0-CWMXJ |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 48GB |
| Speed | DDR5-5600 / PC5-44800 |
| Data Transfer Rate | 5600 MT/s (platform dependent) |
| Rank Configuration | 2Rx8 (dual rank) |
| ECC Support | Yes (on-die plus registered module error handling) |
| Operating Voltage | 1.1V (lower than DDR4’s typical 1.2V) |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (3G × 8) × 20 |
| Application | Enterprise Servers, Cloud Computing, Databases, AI Computing, Data Centers |
| Operating Environment | 24/7 Enterprise-Class Operation |
| Product Status | Mass Production |
Good to know for B2B buyers
- Electrical incompatibility: DDR5 RDIMMs work only in platforms supporting registered DDR5 memory; they cannot coexist with DDR4 RDIMMs or consumer UDIMMs. Confirm platform support before committing to volume orders.
- The 48GB non-binary density (3G×8 organization) bridges the gap between 32GB and 64GB modules, allowing integrators to maximize memory per channel on supported platforms — useful for dense virtualization and database builds.
- For dual-socket or multi-channel hosts, order matched sets of identical part numbers. Our same-batch stocking policy supports symmetric population per server population rules and consistent memory training across all channels.
Wholesale & Procurement Notes
- MOQ negotiable depending on configuration and destination market.
- Tiered volume pricing available — request a wholesale quote for project-based quantities.
- Typical lead time: 1–3 business days for in-stock items; 2–4 weeks for scheduled production orders.
- Packing & shipping: anti-static OEM trays or boxed units, consolidated cartons, with express, air, or sea freight options and full export documentation.
- RMA window: 30 days for DOA replacement; remainder of manufacturer warranty handled through our RMA desk.
