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Four green DDR4 UDIMM sticks in a clear plastic tray

NEMIX RAM

NEMIX RAM 64GB 4x16GB DDR4 3200MHz CL22 1.2V 288-pin UDIMM memory upgrade

SKU CH-0P40-5W7JN

Four 16 GB DDR4 modules run at 3200 MHz with CL22 latency and 1.2 V for Supermicro X12STE-F and X12STD-F motherboards

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Size 64GB 4X16GB

  • Exact-match 64 GB kit runs at DDR4-3200 CL22 1.20 V
  • Four 16 GB UDIMMs populate all slots on Supermicro X12STE-F and X12STD-F
  • Major OEM Samsung Micron Hynix chips tested at rated speed and timing
  • 288-pin unbuffered non-ECC form factor matches board memory rules
  • Lifetime replacement warranty with free US-based technical support

Exact-match upgrade for Supermicro X12STE-F /

This 64 GB kit contains four 16 GB DDR4 UDIMM modules rated at 3200 MHz CL22 1.2 V. The 1Rx8 non-ECC unbuffered design matches the memory controller expectations of the listed Supermicro motherboards so the full capacity is recognised at rated speed.

Replaces smaller or mixed-capacity DDR4 kits

Swapping a partial set for this matched four-module kit removes population-order conflicts and lets the board run all slots at the specified 3200 MT/s. The jump is worth it when the current installation cannot reach the platform's maximum supported memory or shows instability with mismatched ranks.

Sustained operation at rated voltage and timing

Major OEM chips from Samsung Micron or Hynix are tested for stability at 1.2 V and CL22 across extended workloads. Without a heat spreader the modules rely on case airflow so adequate chassis ventilation keeps temperatures in check during long rendering or virtualization sessions.

How it compares

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

Price $365.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $5.72 per GB
Cheaper than about 68% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 Non-ECC Unbuffered UDIMM Memory
Part numberMD25600-618K4
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 4 × 16 GB DDR4 3200 MHz PC4-25600 1Rx8 1.2 V 288-PIN Non-ECC UDIMM KIT

Other versions of this model

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Questions about this item

Will the 288-pin UDIMM modules fit the DIMM slots on my Supermicro X12STE-F motherboard?

Yes, the kit uses the standard 288-pin DDR4 UDIMM form factor required by the Supermicro X12STE-F and X12STD-F boards, so each 16 GB module seats directly into the desktop DIMM slots.

What is the correct installation order for the four 1Rx8 modules on the Supermicro X12STD-F?

Populate the slots following the motherboard manual's approved DIMM population sequence for four 1Rx8 UDIMMs to ensure the memory controller recognises the full 64 GB at DDR4 3200.

Do these non-ECC UDIMMs require any firmware updates or ongoing maintenance after installation?

No firmware updates are needed; the modules run at the rated 1.2 V and CL22 timings once seated, and the major OEM chips (Samsung, Micron, Hynix) are tested for long-term stability without user maintenance.

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