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Green 288-pin RDIMM module with black Samsung chips, 128GB DDR4 2933MHz ECC registered

A-Tech

A-Tech 128GB DDR4 2933MHz CL21 1.20V ECC Registered 288-Pin Server Memory

SKU CH-WPEA-V26YM

128 GB DDR4-2933 ECC registered quad-rank RDIMM for Supermicro servers

  • Total capacity128 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetSamsung Chipset
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 128GB capacity expands server memory for heavy workloads
  • DDR4 2933MHz speed delivers PC4-23400 bandwidth for data-intensive tasks
  • CL21 latency at 1.20V balances responsiveness with standard voltage efficiency
  • ECC Registered with 2S2Rx4 quad-rank design protects data integrity in critical applications
  • Supermicro certified with Samsung M393AAG40M3B-CYF chipset ensures validated compatibility

128GB DDR4-2933 ECC RDIMM

This 128GB registered DDR4 module runs at 2933MHz with CL21 latency and 1.20V operation. It uses a 4Rx4 quad-rank layout built on Samsung 3DS/TSV chips and carries Supermicro certification for validated server platforms.

Registered ECC limits and rank constraints

Registered ECC RDIMMs require a chipset and CPU that support registered signalling and error correction; consumer desktop boards will not POST with them. The 4Rx4 quad-rank organisation increases electrical load per slot, so the maximum number of modules per channel is often lower than with single or dual-rank DIMMs.

Verify platform qualification before ordering

Confirm that your motherboard or server qualified vendor list includes the MEM-DR412MH-ER29 part number and supports 128GB quad-rank RDIMMs at 2933MHz. Check the maximum supported capacity per slot and total system capacity, as some platforms cap registered DIMM density below 128GB. Ensure the BIOS revision in use recognises Samsung 3DS/TSV modules.

How it compares

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

Price $1,058.99
Pricier than about 81% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $8.27 per GB
Pricier than about 59% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSuperMicro
Product lineSupermicro Certified
Model nameMEM-DR412MH-ER29
Total capacity128 GB
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2S2Rx4 (4Rx4)
Power
Rated voltage1.2 V

Questions about this item

Should I choose the 128GB quad-rank module or a lower-capacity alternative?

This module provides 128GB in a single 288-pin RDIMM using 3DS/TSV technology with a 2S2Rx4 (4Rx4) organisation. Select it when your server board supports quad-rank registered DIMMs and you need maximum density per slot.

What does the 2933 MHz speed rating deliver in an actual server?

The module runs at DDR4 2933 (PC4-23400) with CL21 latency at 1.20V, giving 23400 MB/s peak bandwidth per stick when the platform enables that data rate.

Is this DDR4 RDIMM limited by the registered ECC interface?

The registered ECC interface adds one clock cycle of buffering for signal integrity, allowing dense 4Rx4 loads on 288-pin DDR4 server boards while maintaining the 2933 MHz specification.

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