The Samsung M393A8G40CB4-CWE is a 64GB DDR4-3200 registered ECC module that we stock specifically for wholesale supply to resellers, system integrators, and IT procurement teams. It is a high-turnover SKU for provisioning and extending dual-socket server platforms that require RDIMMs, and it is frequently ordered in matched lots for virtualization clusters, cloud nodes, and data center builds.
Note that this is a registered module: it cannot be combined with consumer UDIMMs or DDR5 parts on the same channel, and buyers should confirm platform compatibility (memory generation and QVL) before committing to volume orders. Our sales desk can assist with compatibility screening for fleet deployments.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M393A8G40CB4-CWE |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) |
| Capacity | 64GB |
| Speed | DDR4-3200 / PC4-25600 (actual speed may depend on CPU and platform support) |
| Data Transfer Rate | 3200 Mbps |
| Rank Configuration | 2Rx4 (dual rank) |
| ECC Support | Yes |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (4G × 4) × 36 |
| CAS Latency | CL22 |
| Application | Enterprise Servers, Cloud Computing, Virtualization, Data Centers |
| Product Status | Mass Production |
Supply & Batch Information
- Stock is maintained in volume with batch consistency guaranteed — modules within a single order ship from the same manufacturing lot to simplify validation and imaging across deployments.
- All units are sourced through authorized channels and pass incoming QC inspection before dispatch; serials and date codes can be provided for asset tracking on request.
- Covered by a standard replacement warranty with a structured RMA process for B2B accounts, minimizing downtime for integrators handling end-customer deployments.
- Compliant with CE, FCC, and RoHS requirements; export documentation is prepared per destination market regulations.
- Ideal for resellers building server configurations and system integrators fulfilling enterprise tenders requiring uniform memory populations per CPU channel.
Good to know
- RDIMMs require a server platform with registered-DIMM support and do not mix with UDIMMs or LRDIMMs in the same channel — confirm your motherboard’s qualified vendor list (QVL) for the M393A8G40CB4-CWE.
- Within Samsung’s DDR4 RDIMM lineup, this module sits in the mainstream 64GB dual-rank (2Rx4) tier at DDR4-3200, offering higher per-module density than 32GB parts while remaining broadly compatible with current-generation DDR4 server platforms.
- For balanced channel population, install modules in matched sets per CPU memory channel as specified in your server’s population rules, and verify maximum supported speed at your intended rank-per-channel configuration.
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; scheduled deliveries available for phased rollouts.
- Anti-static packing standard; neutral, retail, or custom-labeled packing and consolidated freight options on request.
- RMA window: 12 months from invoice date for qualifying B2B orders.
Related reading
- Customs and CE/FCC Compliance When Importing Consumer Electronics from China: A Shenzhen Buying Guide
- Wholesale Audio and Wearable Consumer Electronics Supplier: Bulk Pricing & Global Shipping Guide for B2B Buyers
- Payment safety when ordering electronics from Chinese suppliers: A Shenzhen buyer’s guide
