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Two green DDR5 UDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 1.1V 2Rx8 UDIMM for HP Z2 G9 Tower Workstation

SKU CH-R9XQ-5JTPZ

64 GB kit of two 32 GB DDR5 modules at 4800 MHz, CL40, 1.1 V, 2Rx8 unbuffered UDIMM validated for HP Z2 G9 Tower Workstation

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB kit expands workstation capacity for heavy workloads
  • Dual 32 GB modules populate two slots for balanced throughput
  • DDR5 4800 speed matches HP Z2 G9 Tower memory controller
  • CL40 latency at 1.1 V keeps power draw low
  • 2Rx8 288-pin UDIMM form factor installs without ECC or buffering

HP Z2 G9 Tower Workstation Memory

This 64 GB kit contains two 32 GB DDR5 UDIMMs built for the HP Z2 G9 Tower Workstation. It targets professionals who need reliable capacity for demanding workloads on that specific platform. The modules are unbuffered and non-ECC, matching the workstation's memory architecture.

DDR5 4800 CL40 1.1 V 2Rx8

The decisive specification is the DDR5 4800 speed with CL40 latency at 1.1 V in a 2Rx8 organization. This exact timing and voltage combination determines whether the workstation will POST and run stably. Builders using other speeds, latencies or voltages will encounter incompatibility.

Two-Module Kit With Major OEM Chips

The package delivers a matched pair of 288-pin modules using Samsung, Micron or Hynix components. No heat spreaders are included, so airflow in the chassis handles cooling. The kit format ensures both sticks come from the same production batch for optimal dual-channel operation.

How it compares

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

Price $890.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $13.92 per GB
Pricier than about 60% 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 Non-ECC Unbuffered UDIMM
Part numberMD38400-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsHPE
In the box
Included items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

What does the 4800 MT/s rating actually deliver inside an HP Z2 G9 Tower Workstation?

The kit runs at DDR5 4800 (PC5-38400) with CL40 latency at 1.1 V, giving the workstation its rated memory bandwidth without overclocking.

How does the 288-pin DDR5 UDIMM interface limit speed or capacity on this platform?

The unbuffered 288-pin DDR5 UDIMM slots on the Z2 G9 accept this 2Rx8 kit at the native 4800 MT/s; the board's memory controller sets the ceiling.

Will the two 32 GB modules fit the Z2 G9's DIMM slots without a heat spreader?

Yes, the bare 288-pin UDIMMs are standard height and install directly into the tower's four memory slots.

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