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Green 288-pin DDR4 server memory module with black chips and silver heat spreader

A-Tech

A-Tech 64GB DDR4 2666 ECC LRDIMM 4Rx4 CL19 1.2V Server RAM

SKU CH-PXR8-BQFZ7

A 64 GB DDR4 2666 ECC load-reduced DIMM with CL19 latency and 1.2 V operation for Dell SNP4JMGMC/64G and SNP4JMGMDG/64G servers

  • Total capacity64 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 64 GB capacity supports heavy server workloads
  • DDR4 2666 MHz speed delivers high data throughput
  • CL19 latency enables responsive memory access
  • ECC LRDIMM design protects data integrity under load
  • 2 V operation matches standard DDR4 voltage

A-Tech 64GB DDR4 2666 ECC LRDIMM

This A-Tech module is a 64GB DDR4 2666 ECC LRDIMM built for server and workstation platforms. It uses a 288-pin DIMM form factor and runs at 1.2V standard voltage. The load-reduced design helps maintain signal integrity when populating multiple slots. It is sold as a single 64GB stick.

Fits DDR4 288-pin server slots

The module requires a motherboard that accepts DDR4 288-pin LRDIMMs with ECC and 4Rx4 organisation. It frees standard DIMM slots for other capacities while delivering registered, load-reduced buffering. Verify your system’s qualified vendor list before installation to ensure proper operation.

Suits admins upgrading Dell SNP4JMGMC/64G

Buyers needing non-ECC UDIMMs, RDIMMs instead of LRDIMMs, or different speeds should look elsewhere. Systems limited to lower maximum module densities or consumer chipsets will not support this memory.

How it compares

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

Price $235.99
Pricier than about 55% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $3.69 per GB
Cheaper than about 84% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity64 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

How does the 4Rx4 rank configuration affect maximum capacity per channel under sustained load?

The 4Rx4 organisation places four ranks on each module so a single DIMM already fills the rank budget of many server memory controllers, limiting how many additional modules you can install per channel before the system refuses to boot or drops speed.

What thermal or acoustic impact should I expect from a 1.2 V DDR4 2666 LRDIMM running continuously?

At the standard 1.2 V the module runs at typical DDR4 power levels; the load-reduced buffer adds slight current draw but no active cooling is required and the part produces no audible noise in a properly ventilated server chassis.

Which motherboard feature must already be present for this ECC LRDIMM to function?

The board must provide a DDR4 RDIMM/LRDIMM slot with registered clock driver support and an ECC-capable memory controller; standard unbuffered consumer sockets will not recognise the module.

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