The Samsung M393A8G40AB2-CWE is a 64GB DDR4 ECC Registered DIMM (RDIMM) rated for 3200 MT/s, positioned in our wholesale catalog as a high-volume SKU for server OEM assembly, data center build-outs, virtualization projects, and HPC deployments. For system integrators and IT procurement teams, this is a repeatable, specification-stable part sourced through established channels with batch traceability on request. As a DDR4 module, it is not compatible with DDR5 platforms, so buyers should verify their server platform’s memory generation and population rules before placing bulk orders.
Key specifications (table)
| Parameter | Specification |
| Model Number | M393A8G40AB2-CWE |
| Brand | Samsung |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 64GB |
| Data Rate | 3200 MT/s (actual speed may step down depending on CPU memory controller and DIMM population) |
| Speed Grade | PC4-25600R |
| Rank Configuration | 2Rx4 (dual rank; higher-rank modules often support greater capacities per channel) |
| Error Correction | ECC Supported |
| CAS Latency | CL22 |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Form Factor | RDIMM |
| DRAM Organization | x4-based DRAM (typical for error-correcting server memory) |
| Module Type | Registered ECC Server Memory |
| Operating Temperature | 0°C to 85°C |
| Compliance | JEDEC DDR4 Standard |
| Applications | Enterprise Servers, Data Centers, Cloud Computing, Virtualization, and High-Performance Computing (HPC) |
Good to know for resellers and integrators
- This is a DDR4 RDIMM and cannot be mixed with DDR5 modules; LRDIMMs should not be combined with RDIMMs in the same channel. We recommend confirming your platform’s qualified memory list (QVL) before committing to volume orders, and we can supply sample units for validation on request.
- Stock is held in multi-hundred-piece lots with matching week codes available for orders requiring batch consistency — ideal for integrators deploying identical configurations across server fleets. Large orders are typically shipped from the same production lot where inventory permits.
- When populating multiple channels, install identical modules (same capacity, rank, and speed grade) per channel for optimal performance; note that RDIMM speed may be derated at high DIMM counts depending on the CPU memory controller.
- All units are supplied with a standard reseller warranty. RMA processing is handled directly through our B2B support desk with defined turnaround targets, minimizing after-sales burden on your end customers.
- Products are exported in compliance with applicable regulations and carry CE, FCC, and RoHS conformity documentation, supporting customs clearance and resale in most overseas markets.
Wholesale & Procurement Notes
- MOQ is negotiable; trial quantities available for new B2B customers.
- Tiered volume pricing — the larger the order, the better the unit cost; request a wholesale quote for a formal price list.
- Typical lead time: in-stock items ship within 1–3 business days; larger consolidated orders typically 5–10 business days.
- Packing & shipping: anti-static trays in master cartons, or OEM label options; DHL/FedEx/UPS air freight, sea freight, and consolidated pallet shipping supported.
- RMA window: 12-month warranty with 30-day DOA replacement policy for all B2B orders.
