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Two green DDR5 UDIMM sticks, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR5 4800 CL40 1.1V 288-Pin UDIMM memory upgrade

SKU CH-R4FN-P5GDH

A 16 GB DDR5 4800 kit of two 8 GB unbuffered UDIMMs at CL40 and 1.1 V for HP Z2 G9 Tower Workstation

  • Capacity16GB (2 x 8GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 16 GB kit adds responsive capacity for demanding workloads
  • DDR5 4800 speed feeds data to the CPU without bottlenecks
  • CL40 latency keeps timing tight for smooth multitasking
  • 1 V operation reduces power draw and heat output
  • Validated for HP Z2 G9 Tower workstation compatibility

16 GB DDR5 Kit for HP Z2 G9

This 16 GB kit contains two 8 GB DDR5 modules built for the HP Z2 G9 Tower Workstation. It targets professionals who need a straightforward capacity increase for that specific platform. The modules are unbuffered, non-ECC UDIMMs tested for stability in the listed system.

DDR5 4800 PC5-38400 Standard Limits

The kit runs at 4800 MT/s with a CL40 latency at 1.10 V, matching the PC5-38400 specification. Systems that only support lower DDR5 speeds or require registered DIMMs will not accept these modules. Maximum bandwidth is defined by the JEDEC base data rate and cannot be exceeded without platform support for higher speeds.

Installation Notes and Common Issues

Installation follows the standard 288-pin UDIMM procedure and typically takes a few minutes. Modules have no heat spreader, so handle them by the edges to avoid damaging the exposed chips. The most frequent issue is mixing these sticks with existing memory of different rank, voltage or latency, which can prevent the system from posting.

Highlights

  • 16 GB kit adds responsive capacity for demanding workloads
  • DDR5 4800 speed feeds data to the CPU without bottlenecks
  • CL40 latency keeps timing tight for smooth multitasking
  • 1 V operation reduces power draw and heat output
  • Validated for HP Z2 G9 Tower workstation compatibility

Specifications

BrandNEMIX RAM
SeriesHPE Server/Workstation Compatible Series Memory
ModelHPE DDR5 4800MHZ Non-ECC Unbuffered UDIMM
Part NumberMD38400-818K2
Capacity16GB (2 x 8GB)
SpeedDDR5 4800 (PC5 38400)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemHPE
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 UDIMM
Rank1Rx8
FeaturesDDR5 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content16GB (2X8GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Should I choose the 2x8GB kit or look for a single 16GB module?

The 2x8GB kit enables dual-channel operation on the HP Z2 G9 Tower Workstation, doubling memory bandwidth compared to a single module.

What does the 4800 CL40 rating mean for actual system performance?

The modules run at 4800 MT/s with 40-cycle latency at 1.1V, providing the standard JEDEC DDR5 baseline for the workstation without manual tuning.

Does the 288-pin DDR5 UDIMM interface limit speed on my HP Z2 G9?

The 288-pin UDIMM form factor is the native desktop DDR5 interface; the Z2 G9 memory controller caps operation at the rated 4800 MT/s.

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