The Samsung M393B2G70DB0-CMA is a 16GB DDR3 ECC registered DIMM rated at 1866 MT/s, a part our wholesale channel stocks specifically for resellers, system integrators and IT procurement teams servicing legacy DDR3 server fleets. Demand for this speed grade remains steady in maintenance contracts, spare-parts pools and capacity upgrades for data center nodes, virtualization hosts and storage systems that have not yet migrated to newer memory generations. With ECC and registered buffering, the module targets always-on workloads where uncorrected memory errors are unacceptable.
For volume buyers, batch consistency is a priority: we source and ship by matched lot wherever possible, so single orders are fulfilled from one production batch to avoid mixed-week silicon within the same deployment. Full traceability (part number, lot code, date code) is provided on request for your procurement records.
All units are original Samsung parts — no pulls, no relabels — and ship with a standard warranty covering dead-on-arrival and early-life failures. RMA requests are processed through our B2B channel with cross-shipment options for contract customers; contact sales for the applicable warranty terms in your region. Export-compliant documentation (CE, FCC, RoHS declarations) is available to support customs clearance and EU/US market requirements.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M393B2G70DB0-CMA |
| Brand | Samsung |
| Memory Type | DDR3 ECC RDIMM (Registered DIMM) |
| Capacity | 16GB |
| Data Rate | 1866 MT/s (actual speed may clock down depending on CPU and chipset support) |
| Speed Grade | PC3-14900R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported |
| CAS Latency | CL13 |
| Operating Voltage | 1.5V (standard DDR3; not compatible with 1.35V-only LV DIMM slots) |
| Pin Count | 240-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | 2G x 72 |
| DRAM Architecture | x4-based DRAM |
| Compliance | JEDEC DDR3 Standard |
| Memory Bandwidth | 14.9 GB/s (per module, theoretical) |
| Operating Temperature | 0°C to 85°C |
| Applications | Enterprise Servers, Data Centers, Virtualization Platforms, Storage Systems |
Technical guidance for integrators
- RDIMMs cannot be intermixed with UDIMMs or LRDIMMs on the same board. When quoting projects, plan memory population per the platform vendor’s installation guide so channels are balanced and rated bandwidth is achieved.
- As a PC3-14900R dual-rank module, this part sits at the top of Samsung’s DDR3 server range (1866 MT/s). It is a common drop-in for platforms originally configured with 1333 or 1600 MT/s RDIMMs, provided the CPU memory controller supports the higher grade — a frequent question in upgrade tenders.
- Advise end customers to check the module against the server vendor’s qualified vendor list (QVL) before deployment; 1866 MT/s operation requires an officially supported platform. DDR3 RDIMMs are not interchangeable with DDR4 or DDR5 modules.
Wholesale & Procurement Notes
- MOQ negotiable — flexible order quantities for resellers, integrators and corporate IT buyers.
- Tiered volume pricing available; contact sales to request a wholesale quote.
- Typical lead time: in-stock items ship within 1–3 business days; large volumes scheduled with sales.
- Packing & shipping: anti-static trays or boxed units, neutral or custom labeling available, DHL/FedEx/air freight with export documentation.
- RMA window: 30 days DOA/defective exchange, backed by the standard product warranty.
