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Green 288-pin DDR4 LRDIMM module with black memory chips

A-Tech

A-Tech 64GB DDR4 2133MHz ECC LRDIMM 4Rx4 Server RAM

SKU CH-6AXJ-59P9N

A 64GB DDR4 2133MHz ECC LRDIMM module with 4Rx4 ranks for server memory expansion

  • Total capacity64 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 64GB single module expands server memory capacity
  • DDR4 2133MHz PC4-17000 speed handles demanding workloads
  • ECC LRDIMM 4Rx4 architecture protects data integrity
  • 2V standard voltage reduces power consumption
  • 288-pin DIMM fits compatible DDR4 server slots

64GB DDR4 ECC LRDIMM Server Module

This 64GB DDR4 2133MHz ECC Load Reduced DIMM targets server and workstation administrators who need high-capacity registered memory. The module uses a 4Rx4 organisation and operates at the standard 1.20V DDR4 voltage. It is built with major-brand chips and validated as a direct replacement for Samsung M386A8K40BM1-CPB and M386A8K40BMB-CPB part numbers.

Thermals Noise and Power Draw

Registered LRDIMM construction reduces electrical load on the memory bus, which helps keep power draw predictable at the rated 1.20V. The module runs at CL15 latency under the PC4-17000 speed grade. No active cooling is included, so airflow within the chassis determines operating temperature and acoustic profile.

Upgrade Path and Compatibility

This single 288-pin DIMM replaces or supplements existing DDR4 ECC LRDIMM modules in qualified server platforms. The jump is worthwhile when the system supports Load Reduced topology and requires densities beyond standard RDIMM limits. Buyers who need non-ECC memory, unbuffered DIMMs, or a different DDR generation cannot use this module.

How it compares

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

Price $190.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $2.98 per GB
Cheaper than about 89% 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 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

How do I install this 288-pin LRDIMM and what step is commonly missed?

Align the notch on the 288-pin DDR4 module with the slot key, press firmly until both retention clips click, and verify the system BIOS recognises the full 64GB capacity — skipping the BIOS check is the step most often missed.

What maintenance or replacement will this ECC LRDIMM need over time?

The module itself requires no scheduled maintenance; replacement is only needed if a memory test reports uncorrectable ECC errors or the server fails to boot with the 64GB stick installed.

What limit appears first when this 2133MHz CL15 kit runs sustained workloads?

The 2133MHz data rate and CL15 latency set the bandwidth ceiling, so sustained throughput will plateau at the DDR4-17000 spec before thermal or voltage limits become a factor.

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