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Eight bare green DDR5 RDIMM sticks in anti-static packaging

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR5 4800 CL40 ECC RDIMM ASRock WRX90 WS EVO memory upgrade

SKU CH-Z8JG-H3RF3

Eight 32 GB DDR5 modules totalling 256 GB at 4800 MT/s with ECC and registered buffering for the ASRock WRX90 WS EVO motherboard

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V

Capacity 256GB 8X32GB

Show 3 more
  • 256GB total capacity across eight 32GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design protects data integrity
  • 10V operation at CL40 latency timings
  • 288-pin RDIMM form factor for ASRock WRX90 WS EVO

Capacity and Configuration

This kit provides 256GB of system memory across eight 32GB DDR5 RDIMM modules. It is built for the ASRock WRX90 WS EVO motherboard and targets workstation or server workloads that demand high capacity with error correction.

Registered ECC Operation

The modules run at 4800 MT/s with a CAS latency of CL40 and a voltage of 1.10V. As registered ECC DIMMs they place a lighter electrical load on the memory controller, allowing the platform to populate all eight slots at the rated speed. Non-ECC or unbuffered memory cannot be mixed with this kit.

288-Pin DDR5 RDIMM Form Factor

Each stick uses the standard 288-pin DDR5 RDIMM layout keyed for registered server platforms. The 1Rx4 rank organisation and PC5-38400 rating are fixed by the module design, so the kit only fits boards that explicitly support DDR5 registered ECC memory.

How it compares

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

Price $7,224.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.22 per GB
Pricier than about 79% 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 numberMR38400-314K8
Total capacity256 GB (8 × 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
Heat spreaderNo
Memory rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items256 GB (8 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

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Questions about this item

Should I pick this 256GB kit with eight 32GB modules or a different capacity for my ASRock WRX90 WS EVO?

This kit provides exactly 256GB using eight 32GB DDR5 4800 CL40 ECC RDIMMs, matching the motherboard's eight-channel design for full bandwidth.

What does the 4800 speed rating actually deliver once the modules are installed in the WRX90 WS EVO?

The modules run at DDR5 4800 with CL40 latency at 1.10V, giving the rated PC5-38400 throughput when the platform enables the native DDR5 4800 JEDEC profile.

How does the 288-pin DDR5 RDIMM interface limit performance on this board?

The 288-pin registered DDR5 form factor fits the WRX90 WS EVO's RDIMM slots; the board's memory controller caps the kit at its rated 4800 MT/s and CL40 timing.

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