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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 6400 CL52 1.1V ECC RDIMM Supermicro H13DSG-OM memory upgrade

SKU CH-BB41-K7WXD

A 128 GB registered ECC DDR5 kit of four 32 GB modules running at 6400 MT/s with CL52 latency and 1.1 V, validated for the Supermicro H13DSG-OM motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB total capacity across four 32 GB modules
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • Registered ECC RDIMM architecture prevents data corruption
  • Exact-fit 288-pin layout for Supermicro H13DSG-OM
  • Lifetime replacement warranty with US-based technical support

128GB DDR5-6400 ECC RDIMM Kit

This 128GB kit contains four 32GB DDR5-6400 registered ECC RDIMMs. Each module runs at 1.1V with CL52 timing in a 2Rx8 configuration. The 288-pin form factor matches the Supermicro H13DSG-OM motherboard requirements exactly. Registered buffering allows full-capacity operation across all populated slots.

Suits Supermicro H13DSG-OM servers only

This memory is validated for the Supermicro H13DSG-OM motherboard and its specific population rules. Builders using UDIMM or SODIMM platforms cannot use these registered DIMMs. Systems requiring non-ECC or unbuffered memory should look elsewhere. Buyers needing different capacities or speeds must verify their board's qualified vendor list first.

2Rx8 registered ECC at 1.1V decides fit

The dual-rank 2Rx8 organization with registered ECC and 1.1V operation is the single specification that determines compatibility. Your server's memory controller expects this exact rank structure and voltage to initialize at DDR5-6400 speed. A different rank count, voltage, or unbuffered design will prevent the system from recognizing the full 128GB capacity or running at the rated frequency.

How it compares

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

Price $4,535.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $35.44 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 numberMR51200-328K4
Total capacity128 GB (4 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Must my Supermicro H13DSG-OM motherboard have all 13 DIMM slots free to install this 4 x 32 GB kit?

The kit occupies four 288-pin RDIMM slots. Check the board manual for the exact population order; you do not need every slot empty, only the four prescribed by the manufacturer.

Can I keep my existing DDR5 RDIMMs and add this 128 GB kit without changing voltage?

Yes, if the installed modules are also 1.1 V DDR5 6400 CL52 2Rx8 Registered ECC. Mixed ranks or timings may force the system to run at the slowest common settings.

How do I verify the kit is running at DDR5 6400 CL52 after installation?

Enter the BIOS or use a tool such as dmidecode and confirm each DIMM shows 6400 MT/s, CL52, 1.1 V, 2Rx8 and ECC Registered status.

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