The Samsung M321R8GA0EB0-CWM is a 64GB DDR5-5600 registered ECC DIMM supplied through our wholesale channel for resellers, system integrators, and IT procurement teams building out enterprise server and data center platforms. Its 2Rx4 dual-rank configuration, CL46 latency, and 1.1V operating voltage make it a strong fit for virtualization hosts, database servers, cloud instances, and AI training nodes. We stock this SKU in volume with batch consistency guaranteed for mixed-lot orders, so you can maintain uniform memory configurations across entire server deployments. Please note that DDR5 RDIMMs are not backward compatible with DDR4 or DDR3 platforms — we recommend confirming platform support before placing a purchase order, and our sales team can assist with compatibility verification.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Manufacturer | Samsung |
| Part Number | M321R8GA0EB0-CWM |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 64GB |
| Speed | DDR5-5600 / PC5-44800 |
| Data Transfer Rate | 5600 MT/s (effective rate may be capped by platform/CPU memory controller) |
| Rank Configuration | 2Rx4 (dual rank) |
| ECC Support | Yes (requires platform ECC support) |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (4G × 4) × 40 |
| CAS Latency | CL46 |
| Application | Enterprise servers, cloud computing, AI training, databases, data centers |
| Operating Environment | 24/7 enterprise-class operation |
| Product Status | Mass production |
Supply & Deployment Notes
- This module is compatible only with server and workstation platforms that explicitly support registered DDR5 memory. It will not function in consumer desktop boards and should not be combined with other memory generations or unbuffered module types — an important consideration when quoting configurations to end customers.
- Within Samsung’s DDR5 server lineup, this 64GB dual-rank (2Rx4) module occupies the mainstream enterprise tier. Dual-rank population generally improves per-channel memory bandwidth utilization on virtualized and cache-tier workloads versus single-rank alternatives, a useful selling point for integrator proposals.
- For optimal throughput, populate memory channels symmetrically according to the server vendor’s population guide; if the CPU memory controller limits speeds below 5600 MT/s, the module will operate at the lower supported rate.
- All units shipped from our warehouse are same-batch matched where possible, with firmware/date-code consistency documented on request — simplifying qualification and reducing validation cycles for large rollouts.
- Products carry CE, FCC, and RoHS certifications, with export documentation provided for international shipments to support your customs clearance and compliance requirements.
Warranty & RMA
Standard reseller warranty coverage applies to this SKU, with a streamlined RMA process handled directly through our wholesale support desk. Defective units reported within the warranty window are replaced or credited with minimal turnaround, and advance-replacement arrangements can be discussed for integrators with SLA commitments to their own customers.
For current stock levels, batch allocation, and pricing across your target volumes, request a wholesale quote from our sales team.
Wholesale & Procurement Notes
- MOQ negotiable depending on configuration and destination market.
- Tiered volume pricing available — contact us to request a formal quotation for your quantity band.
- Typical lead time: 3–7 business days for stocked items; extended lead times quoted for large or multi-batch orders.
- Packing & shipping options: anti-static bulk trays, OEM retail packs, neutral packaging for resellers, with express, air, or sea freight supported.
- RMA window: 12-month warranty with 30-day DOA replacement guarantee on all units.
