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

Micron Technology, Inc.

Micron Technology, Inc. MEM-DR464L-CL02-LR26 64GB DDR4-2666 LRDIMM server RAM

SKU CH-3CK4-KT2FK

64GB DDR4-2666 LRDIMM server memory with ECC and load-reduced buffering for high-capacity systems

  • Total capacity64 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Product type288-Pin DDR4 SDRAM
  • 64 GB capacity supports large-scale virtualisation workloads
  • DDR4 2666 speed delivers 21300 MT/s data throughput
  • ECC load-reduced design maintains data integrity under heavy load
  • 20 V operation reduces power draw per module
  • 288-pin DDR4 form factor fits standard server DIMM slots

High-Capacity LRDIMM for Multi-Socket Servers

This 64GB DDR4-2666 LRDIMM targets administrators scaling memory in Supermicro-certified platforms. The load-reduced design allows higher density per channel than standard registered modules. ECC protection corrects single-bit errors to maintain data integrity under sustained workloads. It suits virtualization hosts and database nodes that demand large memory footprints.

Replaces Standard RDIMMs When Density Per Channel

Upgrading from registered DIMMs becomes worthwhile when the platform reaches its rank limit before its capacity limit. Load-reduced buffering reduces electrical load on the memory bus, enabling the full 64GB in a single 288-pin slot. The 2666 MT/s speed matches the DDR4-2666 baseline without overclocking. Systems already running at 1.20V gain capacity without a voltage change.

Verify Platform Support for LRDIMM and 64GB Density

Check the motherboard qualified-vendor list for explicit LRDIMM approval at 64GB per module. Confirm the CPU memory controller supports the PC4-21300 data rate with load-reduced topology. Ensure the BIOS revision enables ECC and the correct timing profile for this part number. Mixed populations with standard RDIMMs are not supported.

How it compares

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

Price $201.99
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 $3.16 per GB
Cheaper than about 88% 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
Model nameMEM-DR464L-CL02-LR26
Total capacity64 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
ECC supportYes
Buffer typeLoad Reduced
Power
Rated voltage1.2 V

Questions about this item

Will the 288-pin LRDIMM fit in a standard DDR4 server DIMM slot?

Yes, the 288-pin DDR4 LRDIMM is designed for standard DDR4 server memory slots that support load-reduced modules.

Do I need to populate specific slots first when installing this 64GB LRDIMM?

Follow the motherboard manual for load-reduced DIMM population order; many platforms require filling the primary channel slots before adding a second module per channel.

How long does the ECC load-reduced DDR4 memory typically last before replacement?

DDR4 server memory has no moving parts and is rated for continuous operation; replacement is only needed if a module fails or capacity requirements increase.

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