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Green rectangular DDR5 memory module with gold contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 4Rx4 CL40 1.1V 288-Pin ECC RDIMM memory upgrade

SKU CH-ZRZ4-F8CBQ

A single 128 GB DDR5 4800 4Rx4 CL40 1.1 V 288-pin ECC registered DIMM for compatible Hynix servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB capacity supports large server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • 4Rx4 288-pin RDIMM fits compatible Hynix systems

Capacity and Form Factor

This NEMIX RAM module delivers 128GB of DDR5 memory in a single 288-pin RDIMM. It operates at 4800MT/s with a CL40 latency and 1.1V voltage. The 4Rx4 registered ECC design targets server and workstation platforms requiring high-density error-correcting memory.

Platform Compatibility Checks

Verify that your motherboard supports DDR5 RDIMM modules and accepts 4Rx4 registered ECC configurations. Confirm the system qualifies 128GB single-rank density per slot and runs at 1.1V. Consult the board vendor memory QVL for the specific part number MR38400-744K1 before ordering.

Thermals Noise and Power

The module runs at the standard DDR5 1.1V without a heat spreader, relying on chassis airflow for cooling. Registered buffering adds minimal latency overhead while reducing electrical load on the memory controller. Power draw scales with the 4800MT/s data rate and 4Rx4 organisation during sustained server workloads.

How it compares

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

Price $3,670.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.68 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 lineHynix Server/Workstaion Compatible Series Memory
Model nameHynix DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K1
Total capacity128 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 systemsHynix
In the box
Included items128 GB (1 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the package include only the single 128GB DDR5 4800 RDIMM or are extra parts supplied?

The package contains one 128GB DDR5 4800 4Rx4 CL40 1.1V 288-pin ECC RDIMM and nothing else.

Is the 128GB 4Rx4 CL40 module the only capacity and rank option in this line?

Yes, this part number MR38400-744K1 is offered solely as a single 128GB 4Rx4 CL40 DDR5 4800 RDIMM.

What does the DDR5 4800 PC5-38400 rating mean for actual server throughput?

The module runs at 4800 MT/s with CL40 latency, delivering up to 38400 MB/s peak bandwidth per DIMM in a compatible registered DDR5 server platform.

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