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Twelve green DDR5 RDIMM modules in a row, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 1.5TB 12x128GB CL40 1.1V 2Rx4 288-pin memory upgrade

SKU CH-WXT3-874KB

A 1.5 TB DDR5-4800 ECC registered server memory kit with twelve 128 GB modules at CL40 and 1.1 V for ASRock Rack GENOA2D24G-2L+ motherboards

  • Capacity1.5TB (12 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 1.5TB 12X128GB

Show 4 more configurations
  • 5TB total capacity from twelve 128GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated bandwidth for demanding workloads
  • Registered ECC design offloads the memory controller and corrects single-bit errors automatically
  • 1V operating voltage matches the platform specification for stable full-population operation
  • Verified compatible with the ASRock Rack GENOA2D24G-2L+ motherboard for guaranteed fitment

1.5TB DDR5 ECC RDIMM kit for ASRock Rack servers

This 1.5TB kit contains twelve 128GB DDR5 4800 registered ECC RDIMMs built to the PC5-38400 standard. It is designed for the ASRock Rack GENOA2D24G-2L+ motherboard where full-capacity, registered memory is required. The modules operate at 1.1V with CL40 latency and a 2Rx4 organisation. Buyers running memory-intensive server workloads on this specific platform receive an exact-match upgrade.

Verify motherboard population rules before ordering

The ASRock Rack GENOA2D24G-2L+ manual defines supported capacities, approved DIMM population order and installation steps that must be followed. This kit uses 288-pin registered RDIMMs; it will not fit UDIMM or SODIMM slots. Confirm the board revision and BIOS version against the vendor documentation to ensure all twelve slots can be populated at the rated speed.

Registered buffering sustains full speed across

The registered architecture offloads the memory controller so every slot runs fully populated at the rated DDR5 4800 frequency without down-clocking. ECC corrects single-bit errors on the fly to prevent silent data corruption during continuous operation. Modules have no heat spreader, so chassis airflow must meet the server vendor's thermal guidelines for sustained load.

Highlights

  • 5TB total capacity from twelve 128GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated bandwidth for demanding workloads
  • Registered ECC design offloads the memory controller and corrects single-bit errors automatically
  • 1V operating voltage matches the platform specification for stable full-population operation
  • Verified compatible with the ASRock Rack GENOA2D24G-2L+ motherboard for guaranteed fitment

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-724K12
Capacity1.5TB (12 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemASRock Rack
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content1.5TB 12X128GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Does the 1.5TB kit ship as 12 separate 128GB RDIMMs or must I order additional modules?

The package contains exactly 12 modules of 128GB each, giving the full 1.5TB capacity in a single kit.

Why choose the 12 x 128GB 2Rx4 configuration instead of a smaller kit?

The 2Rx4 registered ECC design lets every slot run fully populated at the rated 4800 speed while delivering the maximum 1.5TB capacity the motherboard supports.

What does the CL40 timing mean for real-world server workloads?

CL40 is the CAS latency at DDR5-4800; the registered buffer and ECC maintain stability across all 12 slots so the memory controller can sustain the rated throughput under heavy multi-threaded loads.

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