M393A2K40BB2-CTD Samsung 1x16GB DDR4 RDIMM ECC RAM

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Happyware Article Number:

SH7R4863-558012

Manufacturer Number:

M393A2K40BB2-CTD

Brand:

Samsung

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M393A2K40BB2-CTD

Enterprise DDR4 RDIMM Memory Module for Reliable Capacity Scaling with the M393A2K40BB2-CTD

The M393A2K40BB2-CTD is a Samsung 16GB DDR4-2666 ECC Registered RDIMM designed for predictable memory expansion in standard DDR4 server platforms. As a JEDEC-compliant 288-pin DIMM, it aligns with OEM-qualified memory rules for mainstream CPU generations that depend on stable channel population, consistent timings, and registered signal integrity at scale.

In multi-socket architectures, the M393A2K40BB2-CTD supports balanced DIMM-per-channel configurations to sustain bandwidth for virtualization, general-purpose compute, and database tiers without introducing non-standard profiles. ECC with a 72-bit data path and a single-rank x4 organization improves fault tolerance and supports enterprise RAS expectations, while 1.2V operation helps keep power and thermals within data centre envelopes. By stabilizing memory behavior, the M393A2K40BB2-CTD enables efficient utilization of PCIe expansion and storage I/O paths by reducing memory-induced contention under mixed workloads.

Why Choose the M393A2K40BB2-CTD?

The M393A2K40BB2-CTD is selected to standardize RDIMM population across fleets where density-to-performance must remain consistent over time. Its registered design improves electrical loading for higher-capacity configurations, supporting scalable deployment from single-server upgrades to rack-level rollouts while maintaining operational reliability and controlled interoperability risk.

Samsung memory engineering focuses on JEDEC adherence, process consistency, and qualification discipline suited to 24/7 enterprise duty cycles. The module’s low-profile form factor supports dense server layouts and airflow requirements common in modern data centre standards.

Key Applications:

Virtualization hosts
General-purpose compute nodes
Database and application servers
Private cloud infrastructure

At Happyware - Server Hardware you benefit from non-binding offers tailored to your exact M393A2K40BB2-CTD rollout plan and an extended warranty of up to 6 years to protect long-lived server platforms and maintenance budgets.

Technical details of M393A2K40BB2-CTD

Capacity:

16GB

Generation:

DDR4

Single Module Capacity:

16GB

Frequency:

2666MHz

Form Factor:

DIMM

DIMM Type:

DDR4

ECC:

ECC

Registered/Unbuffered:

Registered

Modules Quantity:

Pins:

288

Voltage:

1.2V

Rank:

Single-Rank x4

Intel XMP:

AMD EXPO:

Heat Spreader:

RGB Lighting:

Module height:

JEDEC:

PC4-21300R

CAS Latency:

Row-to-Column Delay (tRCD):

Row Precharge Time (tRP):

Certificates:

RoHS halogen-free

How long is the Warranty and how you can get technical support for M393A2K40BB2-CTD

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.