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Green rectangular low-profile memory module with gold contacts and black chips

SAMSUNG

SAMSUNG 64GB DDR4-2666 LP ECC LRDIMM MEM-DR464L-SL01-LR26

SKU CH-M7SC-1EF74

A 64 GB DDR4-2666 load-reduced ECC module rated at 1.20 V for server platforms

  • Total capacity64 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • High-density 64GB capacity enables larger virtualised workloads
  • DDR4-2666 speed delivers 21300 MT/s bandwidth for demanding applications
  • Load-reduced design reduces electrical load on the memory controller
  • ECC protection corrects single-bit errors to maintain data integrity
  • Low 1.20V voltage lowers power draw in dense server configurations

64GB Load-Reduced DDR4 Module

This 64GB DDR4-2666 LRDIMM adds high-capacity memory to compatible servers. It operates at 1.20V with ECC and registered buffering for data integrity. The module targets administrators expanding dense virtualisation hosts or large in-memory databases. Systems limited to lower densities or non-LRDIMM slots cannot use this part.

Capacity and headroom

A single stick delivers 64GB at PC4-21300 speed, letting a populated chassis reach very large totals without extra slots. Workloads that fit inside this allocation run without swapping. Datasets exceeding the installed amount will still page to storage. The DDR4-2666 rate sets the bandwidth ceiling for memory-bound tasks.

Thermals, noise and power draw

Low-profile height keeps airflow paths clear in tightly packed enclosures. At 1.20V the module draws modest power per gigabyte under load. Passive cooling relies on chassis fans; no onboard fan adds acoustic noise. Thermal output scales with utilisation but stays within normal DDR4 limits.

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).

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Specifications

Product
Total capacity64 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
ECC supportYes
Buffer typeLoad Reduced
Power
Rated voltage1.2 V

Questions about this item

Will this 64GB DDR4-2666 LRDIMM run alongside my existing 32GB RDIMMs at 1.20V?

Load-Reduced and Registered DIMMs cannot be mixed in the same channel; the system will not train with both types installed.

How can I verify the module is operating at the rated 2666 MT/s and ECC is active after installation?

Check the BIOS memory information screen or run a tool such as dmidecode to confirm 2666 MT/s speed, 1.20V voltage and ECC enabled status.

Does the MEM-DR464L-SL01-LR26 package include a heatsink or any installation hardware?

The module ships as a bare low-profile LRDIMM; no heatsink, screwdriver or additional hardware is included.

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