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Four green DDR5 UDIMM sticks, no heat spreaders, 288-pin, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 5200 CL38 memory upgrade

SKU CH-ZZTY-644N3

128 GB kit of four 32 GB DDR5 modules running at 5200 MT/s with CL38 latency for Supermicro desktop workstations

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 5200 (PC5 41600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL38
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 128GB 4X32GB

  • 128 GB total capacity from four 32 GB modules
  • DDR5 5200 speed rated at PC5-41600 bandwidth
  • CL38 CAS latency for responsive desktop performance
  • 1 V operating voltage reduces power draw
  • Validated for Supermicro SYS-531AD-I and C9Z790-CG workstations

Capacity and Compatibility

This 128GB kit provides four 32GB DDR5 UDIMM modules rated at 5200 MT/s with CL38 latency. It is built for Supermicro desktop workstations such as the SYS-531AD-I and C9Z790-CG platforms. The modules are non-ECC, unbuffered and operate at 1.1V using Samsung, Micron or Hynix chips.

Thermals and Power

Without a heat spreader the modules rely on case airflow to stay cool. At the rated 1.1V voltage the power draw remains modest for DDR5, keeping temperatures low during typical desktop workloads. Silent operation is assured because no active cooling is attached to the memory.

Sustained Load Behaviour

Under prolonged stress testing the kit maintains its rated 5200 speed and CL38 timings without throttling. The 2Rx8 organisation supports stable throughput for extended compile, rendering or virtualisation sessions. Compatibility validation targets the specified Supermicro systems rather than general consumer boards.

How it compares

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

Price $2,015.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $15.75 per GB
Pricier than about 62% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 5200 MHz Non-ECC Unbuffered UDIMM
Part numberMD41600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 5200 (PC5 41600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL38
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (4 × 32 GB) DDR5 5200 MHz PC5-41600 2Rx8 1.1 V CL44 288-PIN Non-ECC Unbuffered UDIMM KIT

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Questions about this item

How do I install the 288-pin DDR5 UDIMM modules and which step is often missed?

Align each module's notch with the slot key, press firmly until both retention clips click, then verify in BIOS that all four 32GB sticks run at 5200 MT/s with CL38 timings.

What maintenance or replacement will this 128GB kit need over time?

No scheduled maintenance is required; the modules have no heat spreader and operate at 1.1V, so only a future capacity upgrade would prompt replacement.

What limit appears first under sustained load with these CL38 2Rx8 sticks?

The CAS latency of 38 cycles at 5200 MT/s sets the primary latency boundary before bandwidth or thermal constraints become noticeable.

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