What type of DIMM is it?

It is an **RDIMM**, specifically listed as an **ECC Registered DIMM** in the category. That makes the module part of the registered server memory class rather than an unbuffered DIMM category.

Does the provided data indicate ECC support?

Yes. The category states **ECC Registered DIMM**, which indicates ECC is part of the product classification. No additional ECC implementation details are provided beyond that category-level identification.

Which brand is associated with this memory module?

The brand is **SK hynix**. The product data also names the model as HMCG94CHBRA 64GB DDR5-6400 RDIMM, which matches the same brand identification.

HMCG94CHBRA - Hynix 64 GB DDR5 SDRAM RAM

Name: HMCG94CHBRA - Hynix 64 GB DDR5 SDRAM RAM
Brand: Hynix
SKU: HMCG94CHBRA
Price: 2848 USD
Availability: InStock

HMCG94CHBRA - Hynix 64 GB DDR5 SDRAM RAM | US IT Hardware

Product overview

SK hynix HMCG94CHBRA is a 64GB DDR5-6400 RDIMM in the 64GB DDR5-6400 ECC Registered DIMM category. The product data identifies it as a registered DIMM module and places it in the DDR5 RDIMM memory class. The specification set also indicates it is an ECC module and uses the 64GB capacity level. This makes the part suitable for procurement teams evaluating server memory based on capacity, DDR5 generation, and registered architecture. The available data does not include additional electrical, mechanical, timing, or compatibility details, so only the listed product type and core memory characteristics should be used for specification matching. For buyers standardizing on SK hynix memory, the SKU HMCG94CHBRA and the model name together identify the module as a 64GB DDR5-6400 RDIMM in the ECC Registered DIMM segment.

64GB memory capacity
DDR5-6400 speed designation
ECC Registered DIMM
SK hynix branded module
RDIMM form factor
Server memory category

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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Product Type
Manufacturer part #	HMCG94CHBRA
Brand	Hynix
Condition	New
Model	HMCG94CHBRA
Data Rate	PC5-51200
Registered	Yes
Form Factor	Registered DIMM
Memory Rank	2Rx4
Module Type	RDIMM
Speed Grade	PC5-51200R
Memory Speed	6400 MT/s

Best for

Server memory
For systems that require an RDIMM form factor and 64GB capacity, this module fits the DDR5-6400 Registered DIMM category identified in the product data.
ECC systems
The listed category includes ECC, making it relevant for environments that specify error-correcting registered memory at 64GB.
DDR5 RDIMM platforms
Procurement teams standardizing on DDR5 RDIMM parts can match this module by its DDR5-6400 designation and registered DIMM type.

Frequently asked questions

What is the capacity of this module?

The product data identifies this module as **64GB**. That capacity is repeated in the model name and the category description, so it is the primary size specification available for purchasing and configuration review.

Voltage	1.1V
Memory Voltage	1.1V

Hynix 64 GB DDR5 SDRAM RAM

Product overview

Featuring

Best for

Frequently asked questions

Details

Shipping, warranty & returns

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Performance

Power Consumption