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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 CL19 4Rx4 LRDIMM Server Memory

SKU CH-SFWP-ETG0P

64 GB DDR4 2666 MHz CL19 ECC LRDIMM module using Samsung chips and Supermicro certified

  • Total capacity64 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetSamsung Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 64 GB capacity handles heavy server workloads
  • DDR4 2666 MHz speed delivers high bandwidth
  • CL19 latency with 1.20 V reduces power draw
  • Load Reduced ECC design improves signal integrity
  • Supermicro certified Samsung module ensures validated compatibility

64 GB DDR4 2666 LRDIMM

This 64 GB DDR4 module runs at 2666 MHz with CL19 latency and operates at 1.20 V. It uses a 4Rx4 quad-rank Load Reduced design with ECC for error correction. The 288-pin form factor fits server platforms that support LRDIMM memory.

Supermicro certified Samsung module

The part carries Supermicro certification for the MEM-DR464L-SL01-LR26 specification and is built on Samsung M386A8K40BM2-CTD silicon. This validation confirms compatibility with qualified Supermicro systems and reduces the risk of POST errors or training failures.

Quad-rank load-reduced construction

The 4Rx4 organisation places four logical ranks behind the load-reduced buffer, lowering electrical load on the memory controller. ECC circuitry detects and corrects single-bit errors to maintain data integrity in continuous operation. Buyers needing unbuffered UDIMMs or lower-capacity RDIMMs should verify their platform accepts LRDIMM before ordering.

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).

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-SL01-LR26
Total capacity64 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Memory rank4DRx4 (4Rx4)
Power
Rated voltage1.2 V

Questions about this item

When will this 64GB LRDIMM need replacement under normal server workloads?

The module is built with Samsung DDR4 chips and carries a lifetime warranty; replacement is only required if a chip fails or capacity needs change.

What limits sustained throughput on this quad-rank 2666 MHz module?

The CL19 latency and PC4-21300 bandwidth ceiling determine peak sustained transfer rates.

How much power does this 1.2 V ECC LRDIMM draw during continuous operation?

At the standard 1.20 V DDR4 voltage the module draws minimal power; load-reduced buffering further reduces electrical load on the memory controller.

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