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Four green DDR4 server memory sticks with gold contacts and black heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4 x 64GB) DDR4 2933MHz PC4-23400 4Rx4 ECC RDIMM server RAM

SKU CH-0R7D-YP4P3

Four 64 GB DDR4 2933 MHz ECC registered DIMMs deliver 256 GB at 1.2 V with CL21 latency

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 256 GB total capacity from four 64 GB modules
  • DDR4 2933 MHz speed rated at PC4-23400
  • ECC registered design detects and corrects data errors
  • 4Rx4 organisation with major OEM Samsung Micron Hynix chips
  • Low 1.2 V operation at CAS latency 21

256GB DDR4 2933 ECC RDIMM kit

This 256GB kit contains four 64GB registered DIMMs built for servers that require DDR4 2933MHz PC4-23400 memory. The modules operate at 1.2V with a CAS latency of 21 and use a 4Rx4 organisation. They are intended for enterprise platforms that support ECC and registered memory, not for standard desktop PCs.

Before ordering verify platform compatibility

Confirm that your server motherboard and processor support DDR4 2933 registered ECC DIMMs with a 4Rx4 rank structure and 288-pin form factor. The memory controller must accept quad-rank modules at this density and the BIOS must be configured for registered operation. Systems limited to unbuffered or non-ECC memory cannot use this kit.

Sustained load behaviour

Registered buffering and on-die ECC maintain data integrity during continuous workloads such as virtualisation, database serving or scientific compute. The 1.2V operating voltage helps keep power draw predictable over long periods. Quad-rank density places higher demand on the memory controller, so adequate airflow across the DIMM slots is necessary to sustain rated speed without throttling.

How it compares

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

Price $1,518.99
Pricier than about 84% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 90% 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 $5.93 per GB
Cheaper than about 64% 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#: MR23400-944K4-SM-SYS-5019P-M
Part numberPart#: MR23400-944K4-SM-SYS-5019P-M
Total capacity256 GB (4 × 64 GB)
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency21
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

Does the 256GB kit include all four 64GB modules or must any be purchased separately?

The kit contains four 64GB DDR4 modules for a total of 256GB, so nothing else needs to be bought for this capacity.

When should I choose the 4Rx4 2933MHz version instead of a different rank or speed?

Choose this 4Rx4 DDR4-2933 kit when your server requires registered ECC memory at 2933 MT/s with a 4Rx4 organisation; other ranks or speeds will not match the platform's memory controller requirements.

What does the PC4-23400 rating mean for actual server performance?

PC4-23400 is the module's rated peak bandwidth at 2933 MT/s with CAS 21 latency, giving the throughput and timing the server's memory controller expects for stable operation.

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