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Four green DDR4 UDIMM sticks with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 CL22 UDIMM ASUS TRX40 ROG Zenith II Extreme memory upgrade

SKU CH-6YY1-BVFEM

128 GB DDR4 3200 kit of four 32 GB unbuffered UDIMMs tested for the ASUS TRX40 ROG Zenith II Extreme motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 128 GB total capacity across four 32 GB modules
  • DDR4 3200 speed with PC4-25600 bandwidth rating
  • CL22 CAS latency at 1.2 V operating voltage
  • 288-pin unbuffered non-ECC UDIMM form factor
  • Validated for ASUS TRX40 ROG Zenith II Extreme motherboard

128GB DDR4 3200 kit for ASUS TRX40

This 128GB kit contains four 32GB unbuffered UDIMM modules rated at DDR4 3200 with CL22 timings at 1.2V. It is built for the ASUS TRX40 ROG Zenith II Extreme motherboard using 2Rx8 organisation and 288-pin DDR4 form factor.

Workstation builders needing maximum capacity

The kit suits users who want the full 128GB supported by the board for heavy multitasking, content creation or virtualisation. It is not for systems that require ECC or registered memory, nor for platforms limited to lower densities or slower speeds.

Straightforward DIMM installation

Modules insert into the board's DDR4 slots without tools; the board's manual shows the recommended population order for four sticks. Common issues include forgetting to seat both latches fully or mixing these sticks with existing modules of different speed or rank, which can prevent the system from posting.

How it compares

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

Price $729.99
Pricier than about 56% 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 $5.70 per GB
Cheaper than about 68% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Gaming Motherboard Compatible Series Memory
Model nameASUS DDR4 3200 MHz Non-ECC Unbuffered UDIMM
Part numberMD25600-328K4
Total capacity128 GB (4 × 32 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
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS
In the box
Included items128 GB (4 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Does the ASUS TRX40 ROG Zenith II Extreme motherboard need four free DDR4 UDIMM slots to install this 128GB kit?

Yes, the kit contains four 32GB modules that each occupy one 288-pin DDR4 UDIMM slot, so four empty slots are required.

Can I keep my existing DDR4 3200 CL22 modules and add this 128GB kit to the same motherboard?

The board will run all modules at the speed and timings of the slowest kit; mixing different ranks or ICs can prevent the system from posting.

How do I confirm the 128GB kit is running at DDR4 3200 CL22 after installation?

Enter the UEFI or use a tool such as CPU-Z to verify the memory frequency reads 3200 MT/s and the CAS latency shows 22 cycles.

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