We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Eight bare green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 1TB (8×128GB) DDR5 4800 CL40 4Rx4 ECC RDIMM ASRock WRX90 WS EVO

SKU CH-APWY-PZQF4

Eight 128 GB DDR5 registered ECC modules running at 4800 MHz CL40 deliver 1 TB for the ASRock WRX90 WS EVO workstation

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1 TB capacity with eight 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 latency at 1.1 V operating voltage
  • ECC registered 4Rx4 design for server reliability
  • 288-pin RDIMM kit validated for ASRock WRX90 WS EVO

Capacity and Compatibility

This NEMIX RAM kit provides 1TB of DDR5 memory across eight 128GB registered DIMMs. It is built for the ASRock WRX90 WS EVO motherboard and targets workstations and servers that require ECC protection for data integrity.

Suitable Use Cases

The kit suits professionals running virtualisation, rendering or scientific workloads on the validated platform. It is not for systems that cannot accept 4Rx4 registered modules, builds needing unbuffered memory, or users without the specific ASRock WRX90 WS EVO board.

Decisive Specification

The 4Rx4 registered ECC organisation at DDR5 4800 CL40 determines whether the memory will initialise on the target motherboard. Only platforms qualified for this exact rank and speed combination should use this kit.

How it compares

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

Price $28,062.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $28.06 per GB
Pricier than about 79% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K8
Total capacity1 TB (8 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items1 TB (8 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will eight 4Rx4 modules run at the rated 4800 MT/s on the ASRock WRX90 WS EVO?

The kit is validated for DDR5 4800 on the ASRock WRX90 WS EVO, so all eight 128 GB modules operate at the rated speed when installed together.

What is the power draw and thermal output of this 1 TB kit at 1.10 V?

Each module runs at 1.10 V without a heat spreader; total power scales with eight modules under sustained load, so ensure adequate chassis airflow.

Does the motherboard need a specific BIOS version or CPU to support 1 TB of registered ECC DDR5?

The kit is built for the ASRock WRX90 WS EVO; consult the board manual for required BIOS revisions and supported processors before installation.

More in Model-Specific Memory Upgrades

Similar items