The Samsung M393A2K40EB3-CWE 16GB DDR4-3200 registered ECC DIMM (RDIMM) is a staple line item for server builders, rack integrators and IT resellers. Its registered architecture with onboard ECC supports high-DIMM-count deployments in dual-socket hosts, making it a reliable repeat-purchase SKU for data center refresh projects, virtualization clusters and HPC builds. As a JEDEC-standard DDR4 module, it integrates cleanly into standard procurement workflows — though note that DDR4 RDIMMs are not interchangeable with DDR5, so platform verification prior to ordering is recommended.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M393A2K40EB3-CWE |
| Brand | Samsung |
| Memory Type | DDR4 RDIMM (Registered DIMM) |
| Capacity | 16GB |
| Data Rate | 3200 MT/s (PC4-25600) |
| Rank Configuration | 1Rx4 (single-rank, x4 organization) |
| Error Correction | ECC Supported (requires ECC-capable platform) |
| Voltage | 1.2V |
| Pin Count | 288-pin |
| Chip Organization | (2G x 4) × 18 |
| CAS Latency | CL22 |
| Module Type | Registered ECC Server Memory |
| Bandwidth | 25.6 GB/s |
| Operating Temperature | 0°C to 85°C |
| Compliance | JEDEC DDR4 Standard |
| Typical Applications | Servers, Data Centers, Cloud Computing, Virtualization, HPC Systems |
Sourcing & Integration Notes
- Batch consistency: We supply from traceable, single-batch stock wherever possible so that integrators receive matching date codes across an order — important for even channel population and stable memory training in multi-socket hosts.
- Compatibility checks: This is a DDR4 RDIMM and will not operate in DDR5 platforms, nor should it be mixed with UDIMM/LRDIMM modules in the same channel. Confirm your server QVL and CPU memory controller support before ordering; 3200 MT/s may be downclocked depending on CPU generation and DIMM population.
- Configuration guidance: The single-rank 1Rx4 16GB configuration balances per-channel bandwidth and cost efficiency; dual-rank 2Rx4 variants are available on request for bandwidth-sensitive deployments.
- Deployment planning: For dual-socket virtualization or cache-tier hosts, populate channels evenly with identical modules (model, rank, capacity) to maximize multi-channel bandwidth and avoid POST/training issues.
- Quality assurance: All units are OEM original, inspected and verified before dispatch. Warranty and RMA handling is managed directly through our wholesale support channel for streamlined after-sales processing.
- Export compliance: Products shipped carry CE, FCC and RoHS conformity; export documentation can be prepared for cross-border B2B shipments.
Stock levels for this SKU are updated regularly and bulk quantities can typically be reserved for scheduled deliveries. For current availability, batch information and volume pricing, request a wholesale quote and our sales team will respond with a formal offer.
Wholesale & Procurement Notes
- MOQ negotiable — smaller trial orders accepted for qualified B2B buyers
- Tiered volume pricing available; request a quote for project-scale quantities
- Typical lead time: 1–3 business days for in-stock items; 7–15 days for scheduled bulk orders
- Packing & shipping: anti-static bulk packaging, OEM retail trays, or customized labeling; air/express/freight options with export documentation
- RMA window: 12-month limited warranty; DOA replacements honored within 30 days of receipt
