The Samsung M321R4GA3PB0-CWM is a 32GB DDR5-5600 ECC registered DIMM (RDIMM) supplied through our wholesale channel for resellers, system integrators, and IT procurement teams building enterprise server, cloud, and data center platforms. This part number is in active mass production with stable factory supply, allowing us to support recurring bulk orders with consistent, single-part-number batches — critical for mixed deployments where batch uniformity affects memory training and RMA traceability.
We maintain stock in batch-matched lots and can allocate same-part-number inventory across multiple purchase cycles, so integrators provisioning multi-node clusters receive identical firmware revision and DRAM die stepping within a project. All units ship in original Samsung retail-safe/bulk packaging options, and each shipment is accompanied by export-compliant documentation (CE, FCC, RoHS declarations available on request).
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M321R4GA3PB0-CWM |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 32GB |
| Speed | DDR5-5600 / PC5-44800 |
| Data Transfer Rate | 5600 MT/s (actual speed depends on platform memory controller and populated configuration) |
| Rank Configuration | 2Rx8 (dual-rank, favorable for channel population balance) |
| ECC Support | Yes |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (2G × 8) × 20 |
| CAS Latency | CL46 |
| Application | Enterprise Servers, Cloud Computing, Data Centers, Workstations |
| Operating Environment | 24/7 Enterprise-Class Operation |
| Product Status | Enterprise-Class Mass Production |
Sourcing & Deployment Considerations
- Compatibility gating: DDR5 RDIMMs are neither backward nor forward compatible — they cannot be installed in DDR4 slots and must not be mixed with DDR5 UDIMM or SODIMM modules. Procurement teams should validate chipset and BIOS support for registered DDR5 at this capacity and rank configuration before issuing purchase orders.
- Platform positioning: This dual-rank 2Rx8 32GB module represents the mainstream capacity tier within Samsung’s DDR5 RDIMM lineup, suited to balanced channel population across multi-DIMM-per-channel server boards commonly found in virtualization hosts and database/cache tiers.
- Fleet uniformity: For full-channel population across node fleets, specify an identical part number, capacity, and rank configuration across all modules in a batch. We support this by reserving allocated stock per contract to prevent mixed-die deliveries.
- RMA handling: All wholesale shipments carry a standard warranty with a defined RMA window; claims are processed at batch level with serial-number traceability to simplify returns for large integrators.
Wholesale & Procurement Notes
- MOQ negotiable depending on stock position and destination market
- Tiered volume pricing available — contact us to request a wholesale quote
- Typical lead time: 3–7 business days for in-stock items; extended lead times quoted for scheduled volume programs
- Packing & shipping: original bulk/anti-static packaging, palletized freight, DHL/FedEx/air or sea freight options
- RMA window: 12-month warranty coverage from shipment date, batch-level processing supported
For project-based pricing, batch reservation, or consolidated logistics arrangements, request a wholesale quote and our B2B sales team will respond with a formal quotation within one business day.
Related reading
- Surveillance & storage drives wholesale: Seagate/WD bulk buying guide
- Intel/AMD CPU Wholesale: How Distributors Price Bulk Orders — A Shenzhen Sourcing Guide
- Genuine vs refurbished consumer electronics: how to verify before bulk order — a Shenzhen buying guide
