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Twelve bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1.5TB 12x128GB DDR5 4800 CL40 1.1V ECC RDIMM Supermicro H13SST-GC

SKU CH-77BS-KT2G1

1.5 TB kit of twelve 128 GB DDR5-4800 ECC registered DIMMs at 1.1 V CL40, validated for the Supermicro H13SST-GC motherboard

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1.5TB 12X128GB

Show 24 more
  • 5 TB capacity from twelve 128 GB modules for high-density server workloads
  • DDR5-4800 speed with CL40 latency delivers rated throughput for the platform
  • Registered ECC architecture offloads the memory controller and corrects single-bit errors
  • 1 V operation matches the motherboard's voltage requirement for stable full-population use
  • Verified compatibility with the Supermicro H13SST-GC motherboard ensures correct fit and recognition

Capacity and fit

This NEMIX RAM kit delivers 1.5TB across 12 modules of 128GB each, built as DDR5-4800 RDIMM with ECC and registered buffering. It is made for the Supermicro H13SST-GC motherboard and targets servers that need maximum registered capacity with error correction.

Pre-install checks

Verify the motherboard manual for supported capacities per slot, the required DIMM population order and any BIOS version minimums before ordering. The kit uses 288-pin RDIMM form factor so the board must accept registered modules and not unbuffered or SODIMM types.

Build and daily use

Modules operate at 1.1V with CL40 timing and 2Rx4 organisation using major OEM chips without heat spreaders. Registered architecture reduces electrical load on the memory controller when all slots are populated while ECC corrects single-bit errors to protect data integrity in production workloads.

How it compares

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

Price $45,281.99
Pricier than about 95% 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 $30.19 per GB
Pricier than about 86% 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 numberMR38400-724K12
Total capacity1.5 TB (12 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
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 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the 1.5TB kit ship as twelve 128GB modules or do I need to buy additional DIMMs?

The kit contains exactly twelve 128GB DDR5 RDIMMs, giving 1.5TB total capacity with no extra modules required.

Should I choose a different speed or latency if my Supermicro H13SST-GC supports faster DDR5?

This kit runs at DDR5 4800 CL40 1.1V 2Rx4, the exact specification the board's memory controller expects for full-capacity recognition and rated-speed operation.

What does the 4800 MT/s rating mean when all twelve slots are populated on this motherboard?

Registered ECC architecture lets every slot run fully populated at the rated 4800 MT/s while ECC corrects single-bit errors on the fly.

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