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Four bare green DDR5 RDIMM sticks, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM for ASRock TRX50 WS memory upgrade

SKU CH-0Y0Q-2J245

256 GB DDR5 4800 CL40 ECC registered kit with four 64 GB 288-pin RDIMM modules at 1.1 V for ASRock TRX50 WS workstations

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V

Capacity 256GB 4X64GB

  • 256 GB total capacity for demanding server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design protects data integrity under load
  • Four 64 GB modules in 2Rx4 configuration at 1.1 V
  • 288-pin RDIMM kit validated for ASRock TRX50 WS motherboard

256GB DDR5 ECC RDIMM kit

This NEMIX RAM kit provides 256GB of DDR5 4800 memory in four 64GB registered DIMMs. It is built for the ASRock TRX50 WS workstation motherboard and includes ECC error correction for data integrity in professional workloads.

Check motherboard slot count and CPU support

Verify that your ASRock TRX50 WS board has four free DDR5 RDIMM slots and that the installed processor supports the full 256GB capacity at 4800MHz. Confirm the system requires registered ECC modules at 1.1V before ordering.

Suits workstation builds needing maximum

This kit fits users expanding an ASRock TRX50 WS to its full memory limit with registered ECC modules. Builders using consumer motherboards, non-ECC platforms, or systems limited to unbuffered DIMMs should look elsewhere.

How it compares

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

Price $6,279.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $24.53 per GB
Pricier than about 69% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 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 comes in the box and is anything else needed for installation?

The kit includes four 64 GB DDR5 4800 CL40 ECC RDIMM modules totalling 256 GB. No extra parts are required; install them directly into the ASRock TRX50 WS motherboard slots.

Why choose the 4×64 GB kit instead of a different capacity?

This 256 GB kit (4×64 GB) fully populates the four-channel architecture of the TRX50 WS platform, giving maximum bandwidth and capacity per channel for memory-intensive workloads.

What does the 4800 MT/s speed mean for real-world performance?

At 4800 MT/s with CL40 latency and 1.10 V, the modules run at the standard JEDEC DDR5 data rate, delivering 38 400 MB/s peak bandwidth per module for stable server and workstation operation.

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