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Two green 288-pin DDR5 RDIMM modules, no heat spreaders, 128GB total

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 ECC RDIMM CL40 1.1V 2Rx4 for HP Z8 G5 Fury G5 memory upgrade

SKU CH-XAXN-5TTYX

A 128 GB registered DDR5 kit with ECC, CL40 latency and 1.1 V operation for HP Z8 G5 and Fury G5 workstations

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity with two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • Low 1.10 V operation reduces power draw
  • 288-pin RDIMM form factor fits HP Z8 G5 workstations

HP Z8 G5 Fury G5 DDR5 ECC RDIMM Kit

This 128GB kit contains two 64GB registered DDR5 modules built for HP Z8 G5 and Z8 Fury G5 workstations. ECC protection and registered signalling target professionals who need data integrity in mission-critical workloads. The 2Rx4 organisation suits high-capacity server motherboards that require registered memory.

288-Pin Registered DDR5 4800 Modules

Each stick uses a 288-pin DDR5 RDIMM form factor without a heat spreader, running at 1.10V with CL40 latency. Registered buffering reduces electrical load on the memory controller, allowing the dual-rank 2Rx4 layout to operate stably in fully populated slots. Major OEM Samsung, Micron or Hynix chips underlie the modules.

Thermals Noise and Power at 4800 MT/s

Operating at the standard DDR5 4800 speed and 1.10V keeps power draw low and heat output modest for a 128GB registered kit. Passive cooling in a workstation chassis is sufficient; no active airflow is required beyond normal case ventilation. Silent operation is maintained under sustained server and workstation loads.

How it compares

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

Price $3,509.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $27.42 per GB
Pricier than about 76% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHPE Server/Workstation Compatible Series Memory
Model nameHPE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K2
Total capacity128 GB (2 × 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 systemsHPE
In the box
Included items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the DDR5 4800 interface cap at CL40 latency in this kit?

Yes, the modules are rated at CL40 CAS latency at the 4800 MT/s speed.

What physical slot and form factor do these 64 GB modules require?

Each module uses a 288-pin DDR5 RDIMM form factor and fits a standard DDR5 RDIMM slot.

How are the two 64 GB sticks installed, and which step is often missed?

Insert both modules into the correct paired slots for the CPU, press until the latches click, and verify the BIOS shows 128 GB at 4800 MT/s.

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