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Two green DDR4 RDIMM modules with gold contacts and black chips

NEMIX RAM

NEMIX RAM 128GB (2 x 64GB) DDR4 2933MHz ECC RDIMM Server Memory

SKU CH-4TX7-35MC9

A 128GB kit of two 64GB DDR4 2933MHz ECC registered DIMMs with 21 CAS latency and 1.2V operation

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 128GB total capacity from two 64GB modules
  • DDR4 2933MHz speed rated at PC4-23400
  • ECC registered design detects and corrects data errors
  • 4Rx4 quad-rank organisation with 1.2V operation
  • Built with major OEM Samsung, Micron or Hynix chips

High-density server memory kit

This NEMIX RAM kit delivers 128GB of DDR4 server memory across two 64GB registered DIMMs. Each module runs at 2933MHz with a CAS latency of 21 and operates at 1.2V. The 4Rx4 organisation and ECC support are built for multi-socket platforms that require registered memory.

Suited for registered-DIMM slots only

These modules are designed for server boards that accept 288-pin DDR4 RDIMMs with ECC. They will not work in desktop or laptop systems that use unbuffered memory. Buyers who need non-ECC UDIMMs or SODIMM form factors should look elsewhere.

Deciding specification: 64GB per module density

The 64GB per DIMM density determines whether this kit fits the target platform's maximum supported capacity per slot. Verify the motherboard or system documentation for 4Rx4 registered DIMM support at this capacity before purchase.

How it compares

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

Price $871.99
Pricier than about 79% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (2 × 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 $6.81 per GB
Cheaper than about 55% 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#: MR23400-944K2-SM-SYS-5019P-M
Part numberPart#: MR23400-944K2-SM-SYS-5019P-M
Total capacity128 GB (2 × 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

Will the 288-pin DDR4 RDIMM modules fit my server's memory slots?

Yes, each 64 GB module uses the standard 288-pin DDR4 RDIMM form factor and runs at 1.2 V, matching server DIMM slots that accept DDR4 2933 MHz registered memory.

What is the correct order for installing the two 64 GB sticks in a dual-channel server?

Populate the slots specified by your server's memory population guide — typically the same channel colour or bank number first — so the 4Rx4 ranks are recognised correctly at 2933 MHz with CAS 21.

When should I consider replacing these ECC RDIMMs?

Replace a module if the server logs uncorrectable ECC errors, fails memory diagnostics, or shows repeated correctable errors that exceed the platform's threshold.

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