Samsung M393A4K40DB3-CWE 32G DDR4 3200 RDIMM
The Samsung M393A4K40DB3-CWE is a 32GB DDR4 ECC registered DIMM (RDIMM) rated at 3200 MT/s, built for enterprise servers, data centers, cloud computing, virtualization hosts, and storage systems. It targets IT procurement teams and system integrators stocking or expanding DDR4-generation server platforms that require registered modules with error correction. Note that RDIMMs must match the platform’s DDR4 memory generation — they cannot be mixed with DDR5 or unbuffered desktop memory, so verify your server’s QVL before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M393A4K40DB3-CWE |
| Brand | Samsung |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 32GB |
| Data Rate | 3200 MT/s (actual speed may be limited by CPU and platform support) |
| Speed Grade | PC4-25600R |
| Rank Configuration | 1Rx4 (single rank, x4 DRAM organization) |
| Error Correction | ECC Supported (requires server platform with ECC support) |
| CAS Latency | CL22 (typical for DDR4-3200 registered modules) |
| Voltage | 1.2V |
| Pin Count | 288-pin |
| Form Factor | RDIMM |
| DRAM Organization | x4-based DRAM |
| Operating Temperature | 0°C to 85°C |
| Compliance | JEDEC DDR4 Standard |
| Application | Enterprise Servers, Data Centers, Cloud Computing, Virtualization, Storage Systems |
Good to know
- Compatibility: As a 288-pin DDR4 RDIMM, this module fits DDR4 server platforms only (e.g., Intel Xeon Scalable or AMD EPYC generations supporting DDR4). It will not work in DDR5 or desktop UDIMM/DIMM slots, and RDIMMs should not be mixed with LRDIMMs in the same channel.
- Within the family: The 1Rx4 single-rank configuration leaves headroom for higher per-channel population and capacity expansion; dual-rank 32GB variants exist in Samsung’s RDIMM lineup if your platform favors rank interleaving for memory-intensive virtualization workloads.
- Buying tip: For mixed batches or fleet refreshes, keep model number, speed grade (PC4-25600R), and rank configuration consistent across channels to avoid training or population-order issues — and confirm your server vendor’s supported population rules for best channel balance.
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 M393A4K40DB3-CWE is a 32GB DDR4 ECC registered DIMM (RDIMM) rated at 3200 MT/s, built for enterprise servers, data centers, cloud computing, virtualization hosts, and storage systems. It targets IT procurement teams and system integrators stocking or expanding DDR4-generation server platforms that require registered modules with error correction. Note that RDIMMs must match the platform’s DDR4 memory generation — they cannot be mixed with DDR5 or unbuffered desktop memory, so verify your server’s QVL before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | M393A4K40DB3-CWE |
| Brand | Samsung |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 32GB |
| Data Rate | 3200 MT/s (actual speed may be limited by CPU and platform support) |
| Speed Grade | PC4-25600R |
| Rank Configuration | 1Rx4 (single rank, x4 DRAM organization) |
| Error Correction | ECC Supported (requires server platform with ECC support) |
| CAS Latency | CL22 (typical for DDR4-3200 registered modules) |
| Voltage | 1.2V |
| Pin Count | 288-pin |
| Form Factor | RDIMM |
| DRAM Organization | x4-based DRAM |
| Operating Temperature | 0°C to 85°C |
| Compliance | JEDEC DDR4 Standard |
| Application | Enterprise Servers, Data Centers, Cloud Computing, Virtualization, Storage Systems |
Good to know
- Compatibility: As a 288-pin DDR4 RDIMM, this module fits DDR4 server platforms only (e.g., Intel Xeon Scalable or AMD EPYC generations supporting DDR4). It will not work in DDR5 or desktop UDIMM/DIMM slots, and RDIMMs should not be mixed with LRDIMMs in the same channel.
- Within the family: The 1Rx4 single-rank configuration leaves headroom for higher per-channel population and capacity expansion; dual-rank 32GB variants exist in Samsung’s RDIMM lineup if your platform favors rank interleaving for memory-intensive virtualization workloads.
- Buying tip: For mixed batches or fleet refreshes, keep model number, speed grade (PC4-25600R), and rank configuration consistent across channels to avoid training or population-order issues — and confirm your server vendor’s supported population rules for best channel balance.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
