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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 1TB 8x128GB 6400MHz CL52 2Rx4 1.1V Supermicro H13SSW

SKU CH-A42Q-X1N7E

1 TB registered ECC DDR5 kit with eight 128 GB modules at 6400 MHz CL52 for the Supermicro H13SSW motherboard

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 1TB DDR5-6400 capacity for memory-intensive server workloads
  • Registered ECC RDIMM architecture prevents data corruption under full load
  • 1 V operation matches Supermicro H13SSW voltage requirements
  • 2Rx4 rank configuration aligns with motherboard population rules
  • CL52 latency at 6400 MHz delivers rated throughput per module

1TB DDR5 ECC RDIMM kit for Supermicro H13SSW

This 1TB kit contains eight 128GB DDR5 6400MHz registered ECC modules built to the exact rank, voltage and timing the Supermicro H13SSW memory controller expects. It targets administrators who need maximum supported capacity on this specific motherboard without manual tuning.

DDR5 6400 registered ECC limits

The modules run at DDR5 6400 (PC5-51200) with CL52 latency at 1.1V using a 2Rx4 organisation. Registered buffering allows all eight slots to be populated at rated speed, while ECC corrects single-bit errors on the fly. Mixing different ranks, voltages or speeds will prevent the system from reaching full capacity or rated frequency.

Installation notes for eight-slot population

Install all eight 288-pin RDIMMs following the motherboard manual's population order; the board requires registered DIMMs, not UDIMMs or SODIMMs. Common issues include seating modules incompletely, populating slots in the wrong sequence, or using a BIOS version that does not yet support the full 1TB configuration.

How it compares

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

Price $36,025.99
Pricier than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $36.03 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 numberMR51200-724K8
Total capacity1 TB (8 × 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 TB 8 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I buy this 1 TB kit of eight 128 GB modules or look for a different capacity?

The kit delivers 1 TB total using eight 128 GB RDIMMs. If your Supermicro H13SSW manual lists 128 GB registered DIMMs in its qualified-vendor list and you have eight free slots, this exact capacity will be recognised at full speed.

What does the 6400 MHz rating actually give me inside the server?

Each module runs at DDR5 6400 (PC5 51200) with CL52 latency at 1.1 V, so the memory controller can transfer data at the rated 6400 MT/s across all eight channels when the board is fully populated.

How does the 288 pin registered ECC interface limit what I can do?

The 288 pin RDIMM form factor only fits DDR5 registered ECC slots; it cannot be used in UDIMM, SODIMM or non ECC platforms, and the registered buffer lets the H13SSW run all eight slots at the full 6400 MT/s without signal degradation.

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