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Twelve green DDR5 RDIMM modules in a row, bare black chips, no heat spreader

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 1.5TB 12x128GB 6400 CL52 1.1V 2Rx4 Supermicro H13DSG-OM

SKU CH-JWMZ-PGARG

1.5 TB DDR5 ECC registered server memory kit with twelve 128 GB modules running at 6400 MT/s CL52 1.1 V for Supermicro H13DSG-OM

  • 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
  • 5 TB total capacity from twelve 128 GB modules
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • Registered ECC design prevents silent data corruption
  • 2Rx4 rank layout matches Supermicro H13DSG-OM population rules
  • 288-pin RDIMM form factor fits the board's memory slots

Exact-Match DDR5 ECC RDIMM Kit

This 1.5 TB kit contains twelve 128 GB DDR5-6400 registered ECC modules built to the precise rank, voltage, and timing the Supermicro H13DSG-OM memory controller expects. It is intended for administrators who need the full supported capacity recognised at rated speed without manual tuning. Buyers whose boards require UDIMM or SODIMM form factors cannot use this kit.

Capacity and Headroom

Twelve dual-rank 2Rx4 modules deliver 1.5 TB across every slot, running at CL52 and 1.1 V. Registered architecture offloads the memory controller so all slots stay fully populated at full speed, while ECC corrects single-bit errors on the fly. Systems that cannot address this density or that limit registered DIMM count will not benefit from the full kit.

Build Integration

The 288-pin RDIMM form factor matches the H13DSG-OM slot specification exactly; no UDIMM or SODIMM alternative fits. Consult the motherboard manual for approved population order and maximum supported capacity before installation. Major-brand Samsung, Micron, or Hynix DRAM ensures consistent supply for future expansion within the same validated configuration.

How it compares

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

Price $50,637.99
Pricier than about 96% 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 $33.76 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

Will the 12 modules run at DDR5 6400 CL52 when I add them to the existing DIMMs already installed in my H13DSG-OM?

The kit is spec-matched to the board's memory-population rules, but full-speed operation depends on the manual's approved DIMM order and maximum supported capacity per channel.

How can I confirm the 1.5 TB kit is recognised at full capacity and correct speed after installation?

Check the BIOS memory information screen or the operating system's memory report for 1.5 TB total, DDR5 6400 (PC5-51200) speed, CL52 timings and 1.10 V voltage.

Does the MR51200-724K12 package include anything besides the twelve 128 GB RDIMMs?

The package content lists only the 12 x 128 GB DDR5 6400 CL52 1.1 V 288-pin ECC RDIMM modules; no cables, brackets or additional accessories are included.

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