The Samsung M321R8GA0EB2-CWM is a 64GB DDR5-5600 ECC Registered DIMM (RDIMM) widely deployed across enterprise servers, data center builds, cloud infrastructure, database clusters, and AI training platforms. For resellers and system integrators, this part is a mainstream enterprise-tier SKU with stable mass-production availability, making it well suited for recurring server builds, memory upgrade projects, and maintenance stock. Before fulfilling customer orders, verify the target platform’s validated memory support list, as achievable transfer rates depend on CPU and memory controller support.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Manufacturer | Samsung |
| Part Number | M321R8GA0EB2-CWM |
| Module Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 64GB |
| Speed Rating | DDR5-5600 / PC5-44800R |
| Transfer Rate | 5600 MT/s (actual rate may be limited by CPU/memory controller support) |
| Rank Configuration | 2Rx4 (Dual Rank x4) |
| ECC Support | Yes |
| Operating Voltage | 1.1V (lower than DDR4, reducing power draw at scale) |
| Pin Count | 288-pin |
| Chip Organization | (4G × 4) × 40 |
| CAS Latency | CL46 |
| Operating Temperature | 0°C to 95°C |
| Target Applications | Enterprise Servers, Data Centers, Cloud Computing, Databases, AI Computing |
| Operating Environment | 24/7 Enterprise-Class Operation |
| Product Status | Mass Production |
Procurement Overview
Stock is sourced in consistent, single-batch lots so that multi-unit orders ship with matching part numbers, firmware revisions, and date codes — a critical requirement for integrators populating multiple DIMMs per channel. We support bulk allocations for ongoing build schedules as well as spot orders for project-based demand. For volume commitments, batch consistency and date-code matching can be specified at time of order.
All units are covered by a standard wholesale warranty with a structured RMA process: faulty modules reported within the RMA window are replaced or credited through a streamlined DOA/return workflow, minimizing downtime for your deployment projects. Typical lead times for in-stock quantities are short; larger volume allocations are confirmed at quotation stage. Products are CE, FCC, and RoHS compliant, and shipped with commercial invoices and packing documentation suitable for export clearance.
Compatibility and deployment guidance
- This DDR5 RDIMM is electrically and physically incompatible with DDR4 and DDR3 platforms; registered ECC modules must not be mixed with unbuffered UDIMMs in the same system. Integrators should follow the server’s socket population rules to maintain balanced channel configuration.
- Within Samsung’s DDR5 RDIMM lineup, the 64GB 2Rx4 configuration occupies the mainstream enterprise capacity tier, offering a favorable cost-per-GB point for standard virtualization and application workloads; lower capacities fit bandwidth-sensitive deployments while higher densities serve large-memory tiers.
- For multi-DIMM-per-channel configurations, order identical part numbers across the order to avoid mixed-vendor population issues, and validate the 5600 MT/s rating against the platform’s officially supported memory speed list.
Wholesale & Procurement Notes
- MOQ negotiable depending on configuration and destination market.
- Tiered volume pricing available — contact sales for a project-specific quotation.
- Typical lead time: 1–3 business days for in-stock items; extended allocation for bulk quantities.
- Packing: anti-static OEM packaging; bulk carton or palletized export shipping options available.
- RMA window: 12 months from shipment, with DOA coverage on receipt.
To check current stock levels, request date-code matching, or obtain volume pricing for this Samsung 64GB DDR5 RDIMM, request a wholesale quote and our sales team will respond with availability and terms.
