Samsung M393A2K43DB3-CWE 16G DDR4 3200 RDIMM
The Samsung M393A2K43DB3-CWE is a 16GB DDR4 ECC registered DIMM (RDIMM) rated at 3200 MT/s, aimed at procurement teams and system integrators supplying enterprise servers, data centers, cloud infrastructure, virtualization hosts, and HPC systems. Built to JEDEC standard on a 288-pin RDIMM form factor, it is suited for memory-dense workloads where registered modules are required. Note that RDIMMs must be deployed within DDR4 platforms only — they are not interchangeable with DDR5 or UDIMM/SODIMM slots.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M393A2K43DB3-CWE |
| Brand | Samsung |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 16GB |
| Data Rate | 3200 MT/s |
| Speed Grade | PC4-25600R |
| Rank Configuration | 2Rx8 (Dual Rank) — dual rank can improve bandwidth utilization on supported platforms |
| Error Correction | ECC Supported — requires a server platform with ECC capability |
| CAS Latency | CL22 |
| Voltage | 1.2V (standard DDR4 operating voltage) |
| Pin Count | 288-pin DIMM |
| Form Factor | RDIMM |
| Chip Organization | x8 Organization |
| Operating Temperature | 0°C to 85°C |
| Compliance | JEDEC Standard |
| Application | Enterprise Servers, Data Centers, Cloud Computing, Virtualization, HPC Systems |
Good to know
- Compatibility: verify your server platform supports DDR4 RDIMMs and confirm the maximum supported speed tier — actual data rate is platform dependent and will run at the lowest common speed of CPU and memory configuration. Do not mix with DDR4 LRDIMMs or any DDR5 modules; mixing unregistered desktop memory with RDIMMs is not supported.
- Within Samsung’s DDR4 RDIMM family, this 16GB dual-rank (2Rx8) module at 3200 MT/s is a common choice for balanced capacity-per-slot deployments, such as populating virtualization hosts or cache-tier memory across multiple channels.
- Buying tip: for channel population, follow your server vendor’s memory population guidance (balanced distribution across channels) to achieve rated bandwidth, and source matching model numbers when expanding existing installations to minimize mixed-vendor risk.
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 M393A2K43DB3-CWE is a 16GB DDR4 ECC registered DIMM (RDIMM) rated at 3200 MT/s, aimed at procurement teams and system integrators supplying enterprise servers, data centers, cloud infrastructure, virtualization hosts, and HPC systems. Built to JEDEC standard on a 288-pin RDIMM form factor, it is suited for memory-dense workloads where registered modules are required. Note that RDIMMs must be deployed within DDR4 platforms only — they are not interchangeable with DDR5 or UDIMM/SODIMM slots.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M393A2K43DB3-CWE |
| Brand | Samsung |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 16GB |
| Data Rate | 3200 MT/s |
| Speed Grade | PC4-25600R |
| Rank Configuration | 2Rx8 (Dual Rank) — dual rank can improve bandwidth utilization on supported platforms |
| Error Correction | ECC Supported — requires a server platform with ECC capability |
| CAS Latency | CL22 |
| Voltage | 1.2V (standard DDR4 operating voltage) |
| Pin Count | 288-pin DIMM |
| Form Factor | RDIMM |
| Chip Organization | x8 Organization |
| Operating Temperature | 0°C to 85°C |
| Compliance | JEDEC Standard |
| Application | Enterprise Servers, Data Centers, Cloud Computing, Virtualization, HPC Systems |
Good to know
- Compatibility: verify your server platform supports DDR4 RDIMMs and confirm the maximum supported speed tier — actual data rate is platform dependent and will run at the lowest common speed of CPU and memory configuration. Do not mix with DDR4 LRDIMMs or any DDR5 modules; mixing unregistered desktop memory with RDIMMs is not supported.
- Within Samsung’s DDR4 RDIMM family, this 16GB dual-rank (2Rx8) module at 3200 MT/s is a common choice for balanced capacity-per-slot deployments, such as populating virtualization hosts or cache-tier memory across multiple channels.
- Buying tip: for channel population, follow your server vendor’s memory population guidance (balanced distribution across channels) to achieve rated bandwidth, and source matching model numbers when expanding existing installations to minimize mixed-vendor risk.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
