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Eight bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 CL40 ECC RDIMM ASRock WRX90 WS EVO memory upgrade

SKU CH-3H16-3HT4F

A 128 GB kit of eight 16 GB DDR5 ECC registered DIMMs running at 4800 MT/s with CL40 latency for the ASRock WRX90 WS EVO motherboard

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V

Capacity 128GB 8X16GB

Show 3 more
  • 128 GB total capacity across eight 16 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in dense configurations
  • Validated compatibility with ASRock WRX90 WS EVO motherboard

128GB DDR5 ECC RDIMM kit for ASRock WRX90 WS EVO

This 128GB kit contains eight 16GB DDR5 registered DIMMs rated at 4800MHz with CL40 latency. ECC and registered buffering provide the data integrity required by workstation and server workloads. The modules are validated for the ASRock WRX90 WS EVO motherboard.

288-pin registered modules without heat spreaders

Each DIMM uses a 288-pin DDR5 RDIMM form factor and operates at 1.10V. The absence of heat spreaders keeps the profile low for dense server chassis. Major OEM chips from Samsung, Micron or Hynix are used throughout the kit.

Verify motherboard model and slot population rules

Confirm the board is the ASRock WRX90 WS EVO before ordering, as this kit is qualified for that specific model. Check the manual for the supported memory population sequence and maximum capacity per channel. Ensure the platform accepts registered ECC DDR5 RDIMMs.

How it compares

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

Price $3,663.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.62 per GB
Pricier than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K8
Total capacity128 GB (8 × 16 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
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items128 GB (8 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

What DDR5 speed and bandwidth does this 128 GB kit run at?

The modules operate at 4800 MT/s, delivering PC5-38400 bandwidth.

Will the 288-pin RDIMMs fit the WRX90 WS EVO DIMM slots without a heat spreader?

Yes, the bare 288-pin RDIMMs slot directly into the motherboard's DDR5 RDIMM sockets; no spreader clearance issue exists.

What is the correct population order for the eight 1Rx8 modules on this board?

Fill all eight channels, one module per channel, following the manual's slot sequence for 1Rx8 RDIMMs.

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