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Green rectangular DDR4 LRDIMM module with black chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 32GB DDR4 2666 PC4-21300 CL19 2Rx4 1.2V ECC LRDIMM 288-pin ASUS memory upgrade

SKU CH-Q7MJ-RP60H

32 GB DDR4-2666 ECC LRDIMM module for ASUS servers, 2Rx4 CL19 at 1.2 V

  • Total capacity1 TB (4 × 256 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • 32 GB capacity expands server memory for demanding workloads
  • DDR4 2666 speed delivers high throughput for data-intensive tasks
  • ECC protection detects and corrects errors to maintain data integrity
  • Load-reduced design lowers electrical load for greater scalability
  • 2 V operation reduces power draw in dense configurations

ASUS Server ECC LRDIMM Upgrade

This NEMIX RAM module is a 32GB DDR4 2666 PC4-21300 ECC LRDIMM built for ASUS server motherboards. It targets administrators expanding memory in compatible enterprise platforms. The single-stick design suits slots that accept load-reduced registered DIMMs.

Load-Reduced Registered Architecture

The decisive specification is the load-reduced registered (LRDIMM) buffer, which reduces electrical load on the memory bus so higher capacities can be populated per channel. Standard RDIMM or unbuffered modules will not function in slots that require this signalling.

32GB Capacity with 2Rx4 Organisation

One 32GB stick uses a 2Rx4 layout at 1.2V and CL19 latency, providing substantial headroom for virtualisation, database caching and large dataset workloads. Systems needing more than the maximum supported DIMM count per CPU will hit the platform limit before the module itself becomes a bottleneck.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $224.99
Cheaper than about 57% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (4 × 256 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $0.22 per GB
Cheaper than about 99% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR4 2666 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML21300-324K1
Total capacity1 TB (4 × 256 GB)
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS
In the box
Included items32 GB (1 × 32 GB) DDR4 2666 MHz PC4-21300 2Rx4 1.2 V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory

Questions about this item

What does the 2666 speed rating mean once the module is installed in a compatible ASUS server?

The module operates at DDR4 2666 with CL19 latency, providing 2666 MT/s data transfer in a supported ASUS server platform.

How does the DDR4 2666 PC4-21300 interface cap real-world throughput?

The PC4-21300 designation indicates the standard DDR4 2666 data rate; actual throughput depends on the server memory controller and channel configuration.

What physical slot and clearance does the 288-pin LRDIMM need to fit?

The 288-pin DDR4 LRDIMM fits a standard DDR4 DIMM slot; the module has no heat spreader, so it requires only the slot's vertical clearance.

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