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Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 6400 ECC Registered RDIMM 1.5TB 12x128GB Kit Supermicro H13SSW

SKU CH-800J-DNKSA

1.5 TB DDR5 6400 ECC registered RDIMM kit in twelve 128 GB modules built for the Supermicro H13SSW motherboard

  • 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
  • 5TB total capacity for memory-intensive workloads with 12 x 128GB modules
  • DDR5-6400 speed rated at PC5-51200 for high-throughput server tasks
  • Registered ECC design with 2Rx4 organisation corrects single-bit errors automatically
  • 1V operating voltage matches platform specification for stable full-population operation
  • Verified compatibility with Supermicro H13SSW motherboard using 288-pin RDIMM form factor

Capacity and form factor

This kit provides 1.5TB of DDR5 memory across 12 modules of 128GB each. It uses the 288-pin RDIMM form factor with a 2Rx4 rank structure. The registered design and ECC function are required for the target server platform.

DDR5-6400 interface limits

The modules run at DDR5-6400 (PC5-51200) with a CAS latency of CL52 and a voltage of 1.1V. The registered architecture buffers address and command signals so the memory controller can drive all 12 slots at the rated speed without signal degradation.

Supermicro H13SSW compatibility

This specific kit is validated for the Supermicro H13SSW motherboard and matches its population rules. Builders using a different board or a platform that requires UDIMM or SODIMM modules cannot use this memory.

How it compares

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

Price $54,988.99
Pricier than about 97% 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 $36.66 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

Questions about this item

Should I choose the 12x128GB kit or a different capacity for my Supermicro H13SSW?

The 12x128GB kit delivers 1.5TB total capacity across all twelve DIMM slots. Populate every slot with these 2Rx4 Registered ECC modules to reach the full 1.5TB at DDR5 6400 CL52 1.1V.

What does DDR5 6400 CL52 mean for real-world server performance?

The modules run at 6400 MT/s with CAS latency 52 at 1.1V. Registered buffering and ECC keep all twelve slots stable at rated speed, preventing silent data corruption under sustained enterprise workloads.

Does the 288-pin RDIMM interface limit how many modules I can install?

The 288-pin RDIMM form factor matches the H13SSW memory slots exactly. All twelve modules install without adapters, and the registered design lets the memory controller drive every slot at full 6400 MT/s.

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