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

NEMIX RAM

NEMIX RAM 128GB DDR5 6400MHz 2Rx4 CL52 1.1V ECC Registered RDIMM memory upgrade for Supermicro H13SSL-NT

SKU CH-QRHW-VYFRK

128GB DDR5 6400MHz ECC Registered RDIMM with 2Rx4 organisation, CL52 latency and 1.1V operation, validated for the Supermicro H13SSL-NT motherboard

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128GB capacity expands server memory headroom for virtualisation and databases
  • DDR5 6400 speed delivers PC5-51200 bandwidth for data-intensive workloads
  • Registered ECC architecture corrects single-bit errors to prevent silent data corruption
  • 2Rx4 1.1V CL52 timings match Supermicro H13SSL-NT memory controller requirements exactly
  • 288-pin RDIMM form factor ensures physical and electrical compatibility with the target motherboard

Server-Specific DDR5 RDIMM Upgrade

This NEMIX RAM module delivers 128GB of DDR5 6400 memory in a 288-pin Registered ECC RDIMM form factor. It operates at 1.1V with CL52 latency and a 2Rx4 rank configuration. The part is validated for the Supermicro H13SSL-NT motherboard to ensure full-capacity recognition and rated-speed operation.

Suited For Single-DIMM Server Population

System administrators expanding compatible Supermicro servers with a single registered ECC module will match the required voltage, timing, and rank. Builders needing UDIMM, SODIMM, or non-ECC unbuffered memory for workstation or consumer boards cannot use this RDIMM.

Registered ECC Architecture Decides Fit

The buffered registered design offloads the memory controller to support fully populated slots at full capacity, while on-die ECC corrects single-bit errors to prevent silent data corruption. This RDIMM is mandatory for the target platform; unbuffered alternatives will not function.

How it compares

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

Price $4,330.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $33.84 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 numberMR51200-724K1
Total capacity128 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 items128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

My Supermicro H13SSL-NT has 13 DIMM slots; do I need to fill specific ones first for this 128 GB RDIMM to be recognised?

Yes — consult the motherboard manual for the approved population order. The board requires 288-pin Registered DDR5 DIMMs, and this 2Rx4 CL52 1.10 V kit matches the exact rank, voltage and timing the memory controller expects.

Can I run this 2Rx4 Registered ECC DDR5 module alongside 1Rx4 or 2Rx8 DDR5 RDIMMs already installed in the same server?

Mixing different ranks or organisations is not recommended. The memory controller is tuned for 2Rx4 at 6400 MT/s CL52; adding modules with other ranks or timings can force a lower speed or prevent the system from posting.

After installation, how can I confirm the kit is running at 6400 MT/s with ECC active?

Enter the BIOS and verify the memory frequency reads 6400 MT/s (PC5-51200), CAS latency shows CL52, voltage is 1.10 V and ECC status is enabled. Operating-system tools such as dmidecode or CPU-Z will also report the corrected 128 GB capacity and ECC capability.

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