M321R4GA3BB6-CQK Samsung 1x32GB DDR5 RDIMM RAM

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Happyware Article Number:

SH8R5504-280141

Manufacturer Number:

M321R4GA3BB6-CQK

Brand:

Samsung

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

M321R4GA3BB6-CQK

High-Performance DDR5 RDIMM Server Memory Expansion with the M321R4GA3BB6-CQK

The M321R4GA3BB6-CQK is a Samsung 32GB DDR5 RDIMM designed to expand memory capacity and bandwidth on DDR5-capable server CPU platforms, supporting balanced performance for general-purpose compute and virtualization clusters. By using registered buffering and ECC protection, the M321R4GA3BB6-CQK targets predictable operation under sustained load where memory integrity and signal stability are mandatory.

Built on JEDEC DDR5-4800 (PC5-38400R), the M321R4GA3BB6-CQK complements modern multi-core CPU generations that drive higher thread counts and larger working sets. DDR5 improves channel efficiency and helps reduce bottlenecks in memory-intensive services; registered DIMM buffering supports scalable DIMM population in dense platforms, while on-die ECC contributes to resilient data handling inside the DRAM devices. In systems with PCIe Gen4/Gen5 expansion and NVMe storage, the M321R4GA3BB6-CQK helps keep CPU-to-memory throughput aligned so accelerator, I/O, and storage subsystems are not starved by insufficient RAM capacity.

Why Choose the M321R4GA3BB6-CQK?

The M321R4GA3BB6-CQK delivers an enterprise-focused density-to-performance profile for DDR5 servers where deterministic behavior, uptime, and clean scalability matter more than overclocking features. As a 32GB dual-rank x8 RDIMM, the M321R4GA3BB6-CQK supports practical capacity scaling across nodes, enabling consistent fleet configurations for clustered deployments and standardized sparing strategies.

Samsung engineers memory for sustained data center duty cycles, emphasizing JEDEC compliance, controlled manufacturing, and platform compatibility for server-class reliability. The M321R4GA3BB6-CQK aligns with modern power and thermal requirements through 1.1V DDR5 operation and is intended for validated DDR5 RDIMM server designs.

Key Applications:

Server memory expansion for DDR5 CPU platforms
Virtualization hosts and consolidation clusters
General-purpose compute nodes
In-memory databases and cache tiers

At Happyware - Server Hardware you benefit from Bulk Order Discount options for standardized rollouts of the M321R4GA3BB6-CQK across server fleets, and you can secure long-term planning with an Extended Warranty up to 6 years for investment protection in enterprise environments.

Technical details of M321R4GA3BB6-CQK

Capacity:

32GB

Generation:

DDR5

Single Module Capacity:

32GB

Frequency:

4800MHz

Form Factor:

DIMM

DIMM Type:

DDR5

ECC:

on-die ECC

Registered/Buffered:

Registered

Modules Quantity:

Pins:

288

Voltage:

1.1V

Rank:

Dual-Rank x8

Intel XMP:

AMD EXPO:

Heat Spreader:

RGB Lighting:

Module height:

Non-JEDEC

JEDEC:

PC5-38400R

CAS Latency:

Row-to-Column Delay (tRCD):

Row Precharge Time (tRP):

Active-to-Prechange Time (tRAS):

Certificates:

RoHS

How long is the Warranty and how you can get technical support for M321R4GA3BB6-CQK

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.