What memory type and speed does this module support?

This module is a DDR5 ECC RDIMM specified at 6400MT/s, corresponding to the DDR5-6400, PC5-51200 performance class. These parameters indicate it is designed for platforms that officially support DDR5-6400 RDIMM memory, aligning the module with that speed grade and bandwidth category.

Does the HMCG84AHBRA476N support ECC functionality?

Yes. The HMCG84AHBRA476N is listed in the category of DDR5 ECC RDIMM modules. This means it supports error correction code, which helps detect and correct certain types of memory errors when used in systems that are designed to take advantage of ECC capabilities.

What latency rating is specified for this memory module?

The module is specified with a CL52 latency rating as part of its DDR5-6400 PC5-51200 classification. CL52 defines the column access latency timing parameter for this DIMM, which must match or be compatible with the memory timing requirements defined by the target platform’s memory controller.

What form factor and pin count does this DDR5 module use?

The SK hynix HMCG84AHBRA476N is a 288-pin RDIMM. This pin count and form factor are standard for DDR5 registered DIMMs, so it is intended for motherboards with DDR5 RDIMM slots that physically and electrically support 288-pin DDR5 server memory modules.

HMCG84AHBRA476N - Hynix 32GB DDR5 SDRAM RAM

Name: HMCG84AHBRA476N - Hynix 32GB DDR5 SDRAM RAM
Brand: Hynix
SKU: HMCG84AHBRA476N
Price: 2108 USD
Availability: InStock

HMCG84AHBRA476N - Hynix 32GB DDR5 SDRAM RAM | US IT Hardware

Product overview

The SK hynix HMCG84AHBRA476N is a 32GB DDR5 ECC registered DIMM designed for systems that use DDR5 server memory. It is specified at 6400MT/s, aligning with the DDR5-6400, PC5-51200 performance class. This module uses a 288-pin form factor and supports error correction code, providing ECC functionality suitable for environments where data integrity is critical. With a CL52 latency rating, it fits configurations that require this specific timing profile. Classified as an RDIMM, it is intended for platforms that accept registered DDR5 memory. The single 32GB capacity makes it appropriate for building scalable memory configurations in compatible servers or workstations that require DDR5 ECC RDIMM modules.

32GB DDR5 ECC registered DIMM module
DDR5-6400 speed, PC5-51200 classification
ECC support for error-correcting memory use
RDIMM module type for compatible platforms
CL52 latency profile for DDR5-6400 operation
288-pin form factor for DDR5 RDIMM sockets

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Featuring

Manufacturer part #	HMCG84AHBRA476N
Brand	Hynix
Condition	New
Rank	1Rx4
Model	HMCG84AHBRA476N
Capacity	32GB
Data Rate	DDR5-6400
Generation	DDR5 Gen 5
Form Factor	288-pin DIMM
Module Type	RDIMM
Memory Speed	6400MT/s
Product Line	DDR5 SDRAM RDIMM

Best for

ECC servers
Suitable for servers that require 32GB DDR5 ECC registered DIMMs, using the 288-pin form factor and CL52 latency within DDR5-6400, PC5-51200 specifications.
DDR5 platforms
Fits platforms designed for DDR5-6400 PC5-51200 memory, leveraging 32GB capacity and CL52 timings for systems that support ECC RDIMM modules.
RDIMM systems
Intended for systems that accept registered DDR5 memory, combining 32GB capacity, ECC support, and 288-pin RDIMM design.
Memory capacity scaling
Useful in configurations where multiple 32GB DDR5-6400 ECC RDIMMs are combined to reach target system memory capacities.
Latency-specific deployments
Appropriate for deployments that explicitly require CL52 latency along with DDR5-6400 data rate and ECC RDIMM characteristics.

Hynix 32GB DDR5 SDRAM RAM

Product overview

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Performance

Power Consumption

CAS Latency	CL52
Bandwidth Rating	PC5-51200