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Green rectangular DDR4 DIMM module with black chips and gold contacts

A-Tech

A-Tech 32GB DDR4 2666MHz ECC RDIMM 2Rx4 Server Memory

SKU CH-PBKJ-AQ80R

A 32 GB DDR4 2666 MHz ECC registered DIMM for server and workstation upgrades

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 32GB capacity handles heavy server workloads
  • ECC registered design protects data integrity
  • DDR4 2666MHz speed delivers responsive performance
  • CL19 latency at 1.2V ensures efficient operation
  • 2Rx4 dual-rank architecture maximises memory density

Server ECC RDIMM for Workstations

This 32GB A-Tech module is a compatible replacement for the Hynix HMA84GR7MFR4N-VK and targets servers and workstations that require registered ECC memory. The single DIMM delivers 2666MHz DDR4 speed with CL19 latency at the standard 1.20V operating voltage.

288-Pin DIMM with 2Rx4 Organisation

The registered 2Rx4 layout uses major-brand chipsets and fits the standard DDR4 DIMM slot. ECC and registered buffering improve data integrity for multi-tasking workloads and higher-density configurations. Quality-assurance testing is performed on every module before it ships.

Standard-Voltage Operation for Stable Thermals

Running at 1.20V keeps power draw and heat output within normal DDR4 limits for registered server memory. The module is designed for continuous operation in environments where sustained throughput and error correction take priority over low latency.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $129.99
Cheaper than about 59% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $4.06 per GB
Cheaper than about 81% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Hynix
Model nameHMA84GR7MFR4N-VK
Total capacity32 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

Does the DDR4 2666 PC4-21300 interface cap the module at 2666 MT/s in a server board?

Yes, the DDR4 2666 PC4-21300 rating means the module runs at 2666 MT/s when the platform supports that speed; it will down-clock automatically if the system only supports a lower DDR4 rate.

Will this 288-pin registered DIMM fit a standard server DIMM slot?

The module uses the 288-pin DDR4 RDIMM form factor, which matches standard server DIMM slots; verify your system accepts registered ECC memory before installing.

What is the correct way to seat the module so the ECC registration initialises?

Align the notch with the slot key, press firmly straight down until both retention clips click, then power on; the most common mistake is stopping before both clips engage, which leaves the register inactive.

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