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Green 288-pin DDR4 LR-DIMM module with black chips

SAMSUNG

SAMSUNG M386A8K40CM2-CVF 64GB DDR4-2933 LR-DIMM 4Rx4 server RAM

SKU CH-VR1F-81J00

High-capacity 64 GB DDR4-2933 load-reduced ECC module with 4Rx4 organisation for memory-intensive server workloads

  • ChipsetSamsung Chipset
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4
  • Product type288-Pin DDR4 SDRAM
  • 64 GB capacity supports data-intensive workloads
  • Load Reduced design enables four ranks per module
  • ECC protection detects and corrects memory errors
  • 2933 MT/s speed delivers high throughput
  • 20 V operation reduces power consumption

Samsung 64 GB LR-DIMM for data-intensive servers

This 64 GB DDR4-2933 Load Reduced DIMM uses a 4Rx4 organisation and ECC to deliver high capacity per slot. It operates at 1.20 V on a 288-pin interface and is validated for stability in demanding server and workstation environments.

Ideal for dense memory configurations in cloud

Suits administrators who need maximum rank density without mixing memory types. Not for systems that only accept RDIMM, UDIMM or ECC UDIMM, or for any platform that does not explicitly support LR-DIMM.

Single module provides 64 GB at 2933 MT/s

Comfortably handles large virtualisation hosts, in-memory databases and analytics workloads that benefit from high per-slot capacity. Headroom ends when the memory controller reaches its maximum supported rank count or total system capacity limit.

How it compares

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

Price $299.99
Pricier than about 61% of the 6,523 comparable items (median $188.99).

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Specifications

Product
Brand nameSAMSUNG
Product type288-Pin DDR4 SDRAM
Processor
ChipsetSamsung Chipset
Memory
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

Does my server motherboard need 288-pin DDR4 slots that specifically support Load Reduced DIMMs for this module to work?

Yes, this module requires a 288-pin DDR4 slot on a motherboard that explicitly supports LR-DIMM technology; it will not function in slots limited to RDIMM or UDIMM.

Can I keep my existing RDIMM modules installed while adding this 64 GB 4Rx4 LR-DIMM?

No, LR-DIMMs cannot be mixed with RDIMMs, ECC UDIMMs or standard UDIMMs; all slots must be populated with matching LR-DIMM modules.

How do I verify the module is running at its rated 2933 MT/s speed after installation?

Enter the server BIOS or use a system-information tool such as CPU-Z to confirm the memory frequency reads 2933 MT/s and that ECC and Load Reduced modes are reported active.

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