M393A4K40EB3-CWE Samsung 1x32GB DDR4 RDIMM ECC RAM

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Happyware Article Number:

SH5R6746-294251

Manufacturer Number:

M393A4K40EB3-CWE

Brand:

Samsung

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M393A4K40EB3-CWE

High-Density DDR4 RDIMM Server Memory for Scalable Compute Nodes with the M393A4K40EB3-CWE

The M393A4K40EB3-CWE is a 32GB DDR4-3200 ECC Registered DIMM engineered for enterprise server platforms where memory stability and predictable latency are critical. Deployed in modern Intel Xeon and AMD EPYC generations that rely on balanced channel population, this RDIMM supports higher-capacity configurations without sacrificing signal integrity, enabling consistent throughput for virtualization, database, and general-purpose compute nodes.

As a 288-pin, dual-rank x72 module, the M393A4K40EB3-CWE provides registered buffering and ECC protection to reduce error propagation and improve uptime under sustained load. With DDR4-3200 bandwidth, CL22 timings, and 1.2V operation, it aligns well with PCIe-based expansion and storage architectures by helping keep CPU cores fed during NVMe-heavy I/O, East-West traffic, and mixed VM consolidation. The low-profile form factor improves physical compatibility in dense 1U/2U chassis, supporting airflow-sensitive deployments and high DIMM population strategies.

Why Choose the M393A4K40EB3-CWE?

The M393A4K40EB3-CWE delivers an efficient density-to-performance profile for scale-out racks, providing 32GB increments that simplify capacity planning across channels and sockets. ECC RDIMM reliability and registered signaling support stable operation at DDR4-3200 in enterprise boards, while the low-profile design reduces integration risk in constrained server builds and accelerates standardized rollouts.

Samsung designs server memory with a focus on validation depth, process consistency, and long-life data center operability. This approach supports repeatable behavior across large fleets and aligns with modern platform requirements for power efficiency, thermal margins, and continuous-duty reliability.

Key Applications:

Server virtualization and consolidation
Database and transactional workloads
General-purpose data center memory expansion
Private cloud compute nodes

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment plan for the M393A4K40EB3-CWE, helping you standardize memory configurations across projects, and you can secure a bulk order discount when scaling the M393A4K40EB3-CWE across multiple servers or rack builds.

Technical details of M393A4K40EB3-CWE

Capacity:

32GB

Generation:

DDR4

Single Module Capacity:

32GB

Frequency:

3200MHz

Form Factor:

DIMM

DIMM Type:

RDIMM DDR4

ECC:

ECC

Registered/Unbuffered:

Registered

Modules Quantity:

Pins:

288

Voltage:

1.2V

Rank:

Dual-Rank

Intel XMP:

AMD EXPO:

Heat Spreader:

RGB Lighting:

Module height:

JEDEC:

PC4-25600R

CAS Latency:

Row-to-Column Delay (tRCD):

Row Precharge Time (tRP):

How long is the Warranty and how you can get technical support for M393A4K40EB3-CWE

Warranty:	24 months (part)
RMA through customer:	yes
RMA Url:	https://www.samsung.com/us/support/service/
Description:	Items must be returned first; no advance replacements. Guaranteed repair or replacement times may vary by product type. On-site service is available for specific products such as large home appliances and large TVs.