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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 6400 ECC Registered RDIMM 1.5TB 12x128GB Kit for ASRock Rack GNRAP2D24G-2L+

SKU CH-G979-JC4JJ

A 1.5 TB DDR5 kit of twelve 128 GB Registered ECC RDIMMs running at 6400 MT/s with CL52 latency and 1.1 V, built for the ASRock Rack GNRAP2D24G-2L+ motherboard

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1.5TB 12X128GB

Show 4 more
  • 5TB total capacity from twelve 128GB modules
  • DDR5-6400 speed with CL52 latency at 1.1V
  • Registered ECC RDIMM prevents data errors in servers
  • 2Rx4 dual-rank organisation for full-slot population
  • 288-pin form factor matches ASRock Rack GNRAP2D24G-2L+

Capacity & Form Factor

This kit delivers 1.5 TB of DDR5 memory across twelve 128 GB RDIMMs. The 288-pin registered ECC modules run at 6400 MT/s with CL52 latency at 1.1 V, matching the exact rank and timing profile the ASRock Rack GNRAP2D24G-2L+ memory controller expects.

Registered ECC Architecture

Registered buffering reduces electrical load on the controller so all twelve slots operate at rated speed when fully populated. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption and unplanned downtime in production workloads.

Suited For & Limits

Ideal for administrators scaling the named ASRock Rack platform to maximum supported capacity with validated modules. Not suited for builds requiring UDIMM or SODIMM form factors, consumer desktop boards, or systems that cannot populate twelve registered DIMMs.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $53,522.99
Pricier than about 97% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $35.68 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 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
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K12
Total capacity1.5 TB (12 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items1.5 TB 12 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the twelve 128 GB RDIMMs need any firmware updates or periodic re-seating to stay stable?

No firmware updates or scheduled re-seating are required; the kit is an exact-match upgrade validated for the ASRock Rack GNRAP2D24G-2L+ and runs at its rated DDR5 6400 CL52 1.1 V settings from first boot.

What limit appears first when all twelve slots run DDR5 6400 continuously at full load?

The registered ECC architecture offloads the memory controller so every slot sustains the rated 6400 MT/s speed and 1.5 TB capacity without down-clocking or population restrictions.

How much heat and power should I budget for a 1.5 TB kit running 24/7 at 1.1 V?

Each module operates at 1.1 V with no heat spreader; total power draw stays within standard DDR5 6400 RDIMM limits and the registered design keeps thermals manageable in properly ventilated server chassis.

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