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Twelve green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM DDR5 6400 1.5TB 12x128GB ECC RDIMM Supermicro H14SSL-N memory upgrade

SKU CH-AQ9J-MGE9K

1.5 TB DDR5-6400 ECC RDIMM kit with twelve 128 GB modules at 1.1 V CL52 for Supermicro H14SSL-N servers

  • 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 24 more
  • 5 TB total capacity from twelve 128 GB modules
  • DDR5-6400 speed with CL52 latency at 1.1 V
  • Registered ECC design corrects single-bit errors automatically
  • 288-pin RDIMM form factor matches Supermicro H14SSL-N slots
  • 2Rx4 rank organisation enables full 1.5 TB population

Exact-fit server memory kit

This 1.5 TB kit delivers twelve 128 GB DDR5 ECC RDIMMs built for the Supermicro H14SSL-N motherboard. Registered architecture and on-die error correction let every slot run fully populated at the rated 6400 MT/s without overclocking. System administrators who need maximum capacity on this specific platform get a validated, drop-in solution. Buyers using consumer boards or UDIMM-only platforms cannot use these modules.

DDR5-6400 2Rx4 registered ECC

The single specification that decides fitment is the 2Rx4 registered ECC profile at 1.1 V with CL52 timing. The memory controller on the H14SSL-N expects exactly this rank structure, voltage and latency; any deviation prevents the system from training at full speed or from recognising the full 1.5 TB capacity. The 288-pin RDIMM form factor is also mandatory — UDIMM or SODIMM variants will not seat in the server slots.

Sustained enterprise stability

Registered buffering offloads the memory controller so all twelve slots operate continuously at 6400 MT/s under heavy multi-threaded workloads. ECC corrects single-bit errors in real time, preventing silent data corruption during long-running database or virtualisation tasks. Without heat spreaders the modules rely on chassis airflow, which is standard in the target server platforms.

How it compares

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

Price $48,318.99
Pricier than about 96% 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 $32.21 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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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 systemsSupermicro
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

What does the 6400 MT/s rating mean once the kit is installed in the Supermicro H14SSL-N?

The twelve 128 GB modules run at DDR5-6400 (PC5-51200) with CL52 latency and 1.1 V, so the board's memory controller recognises the full 1.5 TB at the rated data rate.

How does the 288-pin RDIMM interface and registered design affect real-world operation?

Registered buffering offloads the memory controller, letting all twelve slots stay populated at 128 GB each while ECC corrects single-bit errors on the fly.

What physical space and slot layout does the 12-module kit need on the H14SSL-N?

Twelve 288-pin DDR5 RDIMM slots must be free; the modules have no heat spreaders, so they fit standard DIMM spacing dictated by the motherboard's population rules.

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