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Twelve green 288-pin DDR5 RDIMM modules in a row, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM DDR5 6400 CL52 1.5TB 12x128GB ECC Registered RDIMM memory upgrade for ASRock Rack GNRAPD12DNO

SKU CH-92X5-M5CGQ

1.5 TB DDR5-6400 registered ECC kit with twelve 128 GB modules at CL52 and 1.1 V for ASRock Rack GNRAPD12DNO

  • Capacity1.5TB (12 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 1.5TB 12X128GB

Show 4 more configurations
  • 5TB capacity with twelve 128GB modules for maximum server density
  • DDR5 6400 speed rated at CL52 latency for responsive data throughput
  • Registered ECC architecture corrects single-bit errors to protect critical workloads
  • 1V operation reduces power draw across fully populated memory channels
  • Exact-fit 288-pin RDIMM kit validated for ASRock Rack GNRAPD12DNO motherboard

Exact-match upgrade for ASRock Rack GNRAPD12DNO

This 1.5 TB kit delivers twelve 128 GB DDR5 RDIMMs tuned to 6400 MT/s at CL52 and 1.10 V. Registered ECC architecture ensures the memory controller recognises every module at full rated speed in the target platform.

Capacity and headroom

Twelve dual-rank 2Rx4 modules populate every slot the board provides, giving 1.5 TB of addressable memory for virtualisation, in-memory databases or large-scale compute. The registered design maintains electrical stability when all slots are filled, while ECC corrects single-bit errors before they affect workloads.

Registered ECC RDIMM form factor

The 288-pin Registered DIMM is the only module type the ASRock Rack GNRAPD12DNO accepts; unbuffered UDIMMs or SODIMMs will not function. Verify the motherboard manual for approved population order and maximum supported capacity per socket before installation.

Highlights

  • 5TB capacity with twelve 128GB modules for maximum server density
  • DDR5 6400 speed rated at CL52 latency for responsive data throughput
  • Registered ECC architecture corrects single-bit errors to protect critical workloads
  • 1V operation reduces power draw across fully populated memory channels
  • Exact-fit 288-pin RDIMM kit validated for ASRock Rack GNRAPD12DNO motherboard

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-724K12
Capacity1.5TB (12 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
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 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Will the 12 modules run at 6400MHz CL52 alongside any existing DDR5 RDIMMs I keep in the ASRock Rack GNRAPD12DNO?

Mixing kits is not recommended; the board will downclock all DIMMs to the slowest common speed and loosest timing, so full 6400MHz CL52 operation is only guaranteed when the 12-module kit populates the slots by itself.

How can I verify the 1.5TB kit is recognised at 6400MHz with ECC active after installation?

Enter the BIOS or UEFI and confirm the memory frequency reads 6400MT/s, total capacity shows 1.5TB, and ECC status is reported as enabled or active.

Does the package include only the twelve 128GB RDIMMs, or are any cables, brackets or licences supplied?

The box contains the twelve 288-pin DDR5 6400MHz CL52 1.1V ECC Registered RDIMMs and nothing else; no cables, brackets or software licences are included.

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