SAMSUNG M393B2G70DB0-CMA 16GB DDR3 1866 RDIMM
The Samsung M393B2G70DB0-CMA is a 16GB DDR3 ECC registered DIMM running at 1866 MT/s, aimed at buyers maintaining or expanding legacy enterprise servers, data center nodes, virtualization hosts, and storage systems still on the DDR3 platform. As an RDIMM with ECC, it reduces the risk of uncorrected memory errors in always-on workloads. Note that DDR3 RDIMMs cannot be mixed with DDR4 or DDR5 modules, so confirm your platform generation before ordering.
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 |
Good to know
- RDIMMs must not be mixed with UDIMMs or LRDIMMs in the same server; follow your motherboard’s memory population guide for balanced channel installation to achieve rated bandwidth.
- Within Samsung’s DDR3 server lineup, this PC3-14900R dual-rank module sits at the top of the DDR3 speed range (1866 MT/s), making it a sensible drop-in upgrade for platforms originally populated with 1333 or 1600 MT/s RDIMMs, subject to CPU memory controller support.
- Before purchasing, verify the exact part number against your server vendor’s qualified memory list (QVL) — 1866 MT/s operation requires a platform that officially supports this speed grade.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Samsung M393B2G70DB0-CMA is a 16GB DDR3 ECC registered DIMM running at 1866 MT/s, aimed at buyers maintaining or expanding legacy enterprise servers, data center nodes, virtualization hosts, and storage systems still on the DDR3 platform. As an RDIMM with ECC, it reduces the risk of uncorrected memory errors in always-on workloads. Note that DDR3 RDIMMs cannot be mixed with DDR4 or DDR5 modules, so confirm your platform generation before ordering.
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 |
Good to know
- RDIMMs must not be mixed with UDIMMs or LRDIMMs in the same server; follow your motherboard’s memory population guide for balanced channel installation to achieve rated bandwidth.
- Within Samsung’s DDR3 server lineup, this PC3-14900R dual-rank module sits at the top of the DDR3 speed range (1866 MT/s), making it a sensible drop-in upgrade for platforms originally populated with 1333 or 1600 MT/s RDIMMs, subject to CPU memory controller support.
- Before purchasing, verify the exact part number against your server vendor’s qualified memory list (QVL) — 1866 MT/s operation requires a platform that officially supports this speed grade.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
