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Four green DDR5 RDIMM modules without heat spreaders, 288-pin, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (4 x 32GB) DDR5 4800 CL40 1Rx4 ECC Registered RDIMM memory upgrade

SKU CH-PB4Q-GX65C

128 GB server memory kit with four 32 GB DDR5-4800 registered ECC modules built for the ASRock Rack GENOA2D24G-2L+ motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 4 more
  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed with CL40 latency at 1.1 V
  • ECC registered design corrects single-bit errors automatically
  • 288-pin RDIMM form factor matches ASRock Rack GENOA2D24G-2L+
  • 1Rx4 rank configuration ensures full-slot population stability

128GB DDR5-4800 ECC RDIMM Kit

This 128GB kit contains four 32GB DDR5-4800 Registered ECC RDIMMs built for the ASRock Rack GENOA2D24G-2L+ motherboard. The 1Rx4 modules run at 1.1V with CL40 latency, matching the board's memory-controller expectations for full-capacity recognition at rated speed. It is intended for administrators upgrading that specific server platform.

Verify Manual Population Rules

Server and motherboard memory support varies by model, so consult the system or motherboard manual for supported capacities, approved DIMM population order, and installation steps before ordering. The 288-pin Registered form factor is required; UDIMM or SODIMM modules will not fit or function in this board.

Registered ECC Under Sustained Load

Registered architecture offloads the memory controller so every slot runs fully populated at full capacity during continuous operation. ECC corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots before they reach production workloads.

How it compares

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

Price $3,714.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.02 per GB
Pricier than about 82% 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 numberMR38400-314K4
Total capacity128 GB (4 × 32 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 rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items128 GB 4 × 32 GB DDR5 4800 MHz PC5-38400 1Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What comes in the 128GB kit and do I need anything else to install it?

The kit includes four 32GB DDR5 4800 CL40 1Rx4 ECC Registered RDIMM modules. No extra parts are required; the 288-pin DIMMs install directly into the motherboard memory slots.

How do I decide between this 128GB kit and a smaller capacity for the ASRock Rack GENOA2D24G-2L+?

Choose the 128GB kit when your workload needs the full capacity across four slots. Check the motherboard manual for supported capacities and population rules before selecting a smaller kit.

What does the DDR5 4800 CL40 rating mean once the modules are running in the server?

The modules operate at 4800 MT/s with CAS latency 40 at 1.1V. Registered buffering and ECC keep every slot stable at full speed while correcting single-bit errors on the fly.

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