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Two green DDR4 RDIMM modules with gold contacts and black chips

NEMIX RAM

NEMIX RAM 512GB (2 x 256GB) DDR4 2933MHz PC4-23400 8Rx4 ECC RDIMM server RAM

SKU CH-E2TM-33P0D

Dual 256 GB DDR4 2933 MHz ECC registered DIMM kit delivering 512 GB at 1.2 V with CAS 21 latency

  • Total capacity512 GB (2 × 256 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 512 GB total capacity from two 256 GB modules
  • DDR4 2933 MHz speed rated at PC4-23400
  • ECC registered design detects and corrects data errors
  • 8Rx4 organisation with major OEM Samsung, Micron or Hynix chips
  • CAS latency 21 at 1.2 V operating voltage

Server memory capacity

This kit provides 512GB of DDR4 server memory across two 256GB registered DIMMs. It targets administrators upgrading compatible enterprise platforms that require registered ECC modules at this density. Buyers who need non-ECC unbuffered memory for standard desktop boards cannot use this product.

Registered ECC behaviour

The modules operate at 1.2V with a CAS latency of 21 and an 8Rx4 organisation. Registered buffering and ECC correction change how the memory controller manages signal integrity and error detection compared with unbuffered alternatives. Systems that do not support registered ECC DDR4 will not POST with these DIMMs installed.

288-pin RDIMM form factor

Each stick uses the standard 288-pin DDR4 RDIMM connector and major OEM DRAM from Samsung, Micron or Hynix. The registered design adds a buffer between the DRAM and the memory bus, which affects slot population rules in multi-socket servers. Builders working with consumer motherboards lacking RDIMM support must choose a different memory type.

How it compares

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

Price $2,758.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (2 × 256 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
CAS latency 21
Lower than about 90% of the 439 comparable items (median 40).
Price per GB $5.39 per GB
Cheaper than about 70% 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 nameNEMIX RAM
Model namePart#: MR23400-2584K2-SM-SYS-5019P-M
Part numberPart#: MR23400-2584K2-SM-SYS-5019P-M
Total capacity512 GB (2 × 256 GB)
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency21
ECC supportYes
Buffer typeRegistered
Memory rank8Rx4
Power
Rated voltage1.2 V

Questions about this item

Will the 256GB DDR4 RDIMM modules need replacement after a certain period?

The modules carry a lifetime replacement warranty from the manufacturer, so no scheduled swap is required.

What limits sustained throughput on these 2933MHz 8Rx4 DIMMs?

The CAS latency of 21 cycles at DDR4 2933 sets the primary timing boundary during continuous workloads.

How much heat and power do the 1.2V registered DIMMs produce under all-day load?

Each 256GB stick runs at 1.2 volts, keeping power draw and thermal output low for constant server operation.

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