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Two green DDR5 RDIMM modules with black chips no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 6400 CL52 ECC RDIMM Supermicro H13SSL-NT memory upgrade

SKU CH-Y0R1-9NG6D

A 256GB kit of two 128GB DDR5 6400 ECC Registered RDIMM modules built for the Supermicro H13SSL-NT motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity for memory-intensive server workloads
  • DDR5 6400 speed matches the motherboard's rated frequency
  • CL52 latency and 1.1 V voltage meet the controller's exact timing needs
  • Registered ECC design corrects single-bit errors and supports full population
  • 2Rx4 288-pin RDIMM form factor fits the Supermicro H13SSL-NT slot requirements

256 GB DDR5 ECC RDIMM kit for Supermicro H13SSL-NT

This 256 GB kit contains two 128 GB DDR5 6400 Registered ECC modules built to the exact rank, voltage and timing the Supermicro H13SSL-NT memory controller expects. The 288-pin RDIMM form factor matches the board's DIMM slots so the system recognises the full capacity at rated speed.

Who this suits and who should look elsewhere

Server administrators upgrading a Supermicro H13SSL-NT who need registered ECC memory with 2Rx4 organisation and 1.1 V operation will find this kit validated for that platform. Builders using desktop boards, workstations requiring UDIMMs, or systems that do not support registered ECC DDR5 cannot use these modules.

DDR5 6400 CL52 2Rx4 Registered ECC specification

The modules run at DDR5 6400 (PC5 51200) with CL52 latency, 1.1 V, 2Rx4 registered ECC architecture and 288-pin RDIMM form factor. This combination of speed, rank, voltage and error correction is the single specification that determines whether the kit will operate correctly in the target motherboard.

How it compares

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

Price $8,493.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $33.18 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 numberMR51200-724K2
Total capacity256 GB (2 × 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 items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the 256 GB kit include both 128 GB DDR5-6400 CL52 ECC RDIMMs or must I buy a second module separately?

The kit contains two 128 GB DDR5-6400 CL52 ECC Registered RDIMMs, giving 256 GB total; nothing else is required for a two-slot upgrade.

Should I choose the 2Rx4 1.1 V CL52 version or a different rank or latency for the Supermicro H13SSL-NT?

The board's memory controller expects 2Rx4 registered ECC at 1.1 V with CL52 timing; this kit matches that exact specification for full-capacity recognition at rated speed.

What does the DDR5-6400 PC5-51200 rating mean once the modules are installed in the H13SSL-NT?

The modules will operate at 6400 MT/s with CL52 latency at 1.1 V, delivering the bandwidth and error-correction the platform is designed for when fully populated.

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