M393A2K40BB1-CRC Samsung 1x16GB DDR4 ECC RAM

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Happyware Article Number:

SH4R7243-288220

Manufacturer Number:

M393A2K40BB1-CRC

Brand:

Samsung

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

M393A2K40BB1-CRC

Enterprise DDR4 RDIMM ECC Server Memory Expansion with the M393A2K40BB1-CRC

The M393A2K40BB1-CRC is a Samsung enterprise DDR4 RDIMM designed to expand memory capacity in DDR4-era rack and tower server platforms where stability and predictable latency matter more than peak frequency. As a 16GB registered DIMM with ECC, the M393A2K40BB1-CRC supports CPU memory controllers in mainstream Intel Xeon and AMD EPYC DDR4 generations by reducing electrical loading versus unbuffered DIMMs, enabling consistent population across channels in dense node designs.

Built to JEDEC DDR4-2400 at 1.2V, the M393A2K40BB1-CRC aligns with balanced PCIe expansion and storage-heavy configurations by keeping memory behavior deterministic under mixed I/O and compute. In virtualisation hosts and general-purpose compute nodes, this module helps maintain VM consolidation ratios and page-cache efficiency while ECC and registered buffering improve resilience during sustained runtime. The low-profile 288-pin form factor keeps airflow paths clear in high-density chassis and simplifies serviceability during staged upgrades.

Why Choose the M393A2K40BB1-CRC?

The M393A2K40BB1-CRC delivers a pragmatic density-to-stability profile for enterprises standardising on DDR4 RDIMM fleets, supporting scalable channel population without compromising signal integrity. It is well-suited for controlled expansion cycles where consistent compatibility, predictable performance, and fault-tolerant operation are required across multiple nodes and maintenance windows.

Samsung server DRAM is engineered for long-life platform operation, stringent qualification, and repeatable electrical characteristics that align with modern data centre reliability targets. The M393A2K40BB1-CRC follows established DDR4 RDIMM ECC design practices to support fleet-level consistency and straightforward integration into validated server configurations.

Key Applications:

Virtualisation hosts
General-purpose compute nodes
Database and caching tiers
Private cloud infrastructure

At Happyware - Server Hardware you benefit from non-binding offers tailored to your rollout plan for the M393A2K40BB1-CRC and bulk order discounts that support cost-efficient, standardised memory upgrades across clustered server deployments.

Technical details of M393A2K40BB1-CRC

Capacity:

16GB

Generation:

DDR4

Single Module Capacity:

16GB

Frequency:

2400MHz

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:

PC4-19200R

CAS Latency:

Row-to-Column Delay (tRCD):

Row Precharge Time (tRP):

How long is the Warranty and how you can get technical support for M393A2K40BB1-CRC

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.