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Green rectangular circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 PC5-51200 CL52 2Rx4 1.1V 288-PIN ECC Registered RDIMM Server Memory

SKU CH-GD5D-Q1NT6

128GB DDR5 6400 registered ECC RDIMM with CL52 latency and 1.1V operation

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB capacity supports memory-intensive server workloads
  • DDR5 6400 speed delivers high bandwidth for data-heavy applications
  • CL52 latency at 1.1 V balances responsiveness with power efficiency
  • ECC registered design detects and corrects errors for system stability
  • 2Rx4 288-pin RDIMM form factor fits compatible server memory slots

Server Capacity and Compatibility

This 128GB DDR5 module delivers 6400MHz speed with CL52 latency at 1.1V. It uses a 2Rx4 registered ECC design on a 288-pin RDIMM form factor. The memory is built for servers requiring PC5-51200 bandwidth and is not compatible with standard PC computers.

Sustained Workload Behaviour

Registered buffering and ECC correction maintain data integrity during continuous operation. The 2Rx4 organisation supports high-density server configurations without signal degradation. Major OEM chips from Samsung, Micron or Hynix provide consistent throughput under prolonged load.

Thermal and Power Profile

Operating at 1.1V reduces power draw compared to higher-voltage DDR5 variants. The registered design adds minimal overhead while stabilising the memory bus. Standard server airflow is sufficient for normal thermal management.

How it compares

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

Price $4,328.99
Pricier than about 90% 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).
CAS latency 52
Higher than about 90% of the 439 comparable items (median 40).
Price per GB $33.82 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Model namePart#: MR51200-724K1-DR512C-ER64-V27
Part numberPart#: MR51200-724K1-DR512C-ER64-V27
Total capacity128 GB
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.1 V

Questions about this item

How much heat and power does the 1.1 V DDR5 6400 module draw when the server runs continuously?

The module operates at the standard DDR5 voltage of 1.1 V, so power draw and heat output stay within the JEDEC baseline for 6400 MT/s registered DIMMs.

What motherboard slot and firmware features are required for this 288-pin ECC registered DIMM to function?

A server board with a 288-pin DDR5 RDIMM slot, registered-buffer support and ECC enabled in the BIOS is required; consumer desktop platforms cannot use this module.

Will the 2Rx4 organisation work alongside older 1Rx8 or 2Rx8 DDR5 sticks already installed in the same server?

Mixing ranks is possible if the platform’s memory controller supports mixed-rank populations; check the server vendor’s qualified-vendor list for approved combinations.

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