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Green rectangular circuit board with gold edge connectors and black memory chips on both sides

A-Tech

A-Tech 64GB DDR4 2666MHz ECC LRDIMM 4Rx4 CL19 1.20V 288-Pin Server Memory

SKU CH-Q3BP-TENQE

64 GB DDR4 2666 MHz ECC load-reduced DIMM with Samsung chips, CL19 latency and 1.20 V operation

  • Total capacity64 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetSamsung Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 64 GB capacity handles heavy virtualised workloads
  • Quad-rank 4Rx4 organisation maximises density per slot
  • Load-reduced ECC design lowers electrical load on memory bus
  • Supermicro-certified module validated for server compatibility
  • Samsung DDR4 2666 MHz chips deliver standard-voltage reliability

Supermicro Certified 64GB LRDIMM

This 64GB DDR4 2666MHz ECC Load Reduced DIMM is built for Supermicro server platforms that require high-density registered memory. The module uses Samsung chips in a 4Rx4 quad-rank layout and runs at the standard 1.20V DDR4 voltage. It targets administrators expanding memory capacity in compatible 288-pin slots.

Suits high-capacity server upgrades.

The quad-rank LRDIMM form factor and ECC Load Reduced design suit Supermicro systems validated for the MEM-DR464L-SL03-LR26 part number. Builders using consumer desktop motherboards, workstations without LRDIMM support, or platforms limited to RDIMM or UDIMM modules cannot use this memory.

Deciding spec: 4Rx4 LRDIMM at DDR4 2666

The single specification that decides fit is the 4Rx4 Load Reduced DIMM organisation combined with DDR4 2666 (PC4-21300) speed and 288-pin interface. Only systems whose qualified-vendor list includes this exact rank, voltage, and form factor will accept the module.

How it compares

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

Price $231.99
Pricier than about 54% 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 $3.62 per GB
Cheaper than about 84% 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 nameSuperMicro
Product lineSupermicro Certified
Model nameMEM-DR464L-SL03-LR26
Total capacity64 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

Will this 4Rx4 LRDIMM run with my existing 2Rx4 RDIMMs in the same Supermicro server?

Mixing 4Rx4 Load Reduced DIMMs with 2Rx4 Registered DIMMs is not supported; populate all channels with identical LRDIMMs for stable operation.

How can I confirm the module is running at DDR4 2666 CL19 after installation?

Check the BIOS memory information or a tool such as CPU-Z — it should report 2666 MT/s, CAS 19, 1.20 V and ECC Load Reduced.

Does the package include only the 64 GB module or any extra parts?

The box contains a single 64 GB DDR4 2666 MHz 4Rx4 LRDIMM; no cables, brackets or additional hardware are supplied.

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