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Four green circuit boards with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 ECC UDIMM CL22 memory upgrade

SKU CH-5B0Y-01EHW

128 GB DDR4 3200 ECC UDIMM kit with four 32 GB modules, CL22 latency, 1.2 V operation and 288-pin unbuffered design for ASRock server motherboards

  • 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 from four 32 GB modules
  • DDR4 3200 speed with PC4-25600 bandwidth rating
  • ECC unbuffered design detects and corrects data errors
  • 20 V low-voltage operation reduces power draw
  • Validated for ASRock Rack E3C256D4 series motherboards

128GB DDR4 ECC UDIMM kit

This NEMIX RAM kit provides 128GB of DDR4 memory in four 32GB modules. It is built for servers and workstations that require ECC unbuffered DIMMs. The modules run at 3200MHz with a CAS latency of 22 and operate at 1.20V.

ASRock Rack motherboard compatibility

The kit is validated for specific ASRock Rack motherboards including the E3C256D4ID2, E3C256D4ID-2T, E3C256D4U-2L2T and E3C256D4U-2L2T/BCM. Using it with other platforms is not guaranteed by the manufacturer.

For ECC unbuffered DDR4 systems only

This memory suits administrators upgrading compatible ASRock Rack boards that accept 288-pin DDR4 ECC UDIMMs. It is not for systems that require registered DIMMs, non-ECC modules or a different DDR generation.

How it compares

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

Price $932.99
Pricier than about 60% 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 $7.29 per GB
Cheaper than about 56% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz ECC Unbuffered UDIMM
Part numberME25600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items128 GB (4 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

What does the 3200 MT/s speed mean once the kit is installed in a compatible ASRock server board?

The modules run at DDR4 3200 (PC4 25600) with CL22 latency at 1.20 V, delivering the rated throughput when the motherboard enables the matching XMP or JEDEC profile.

How does the 288-pin DDR4 ECC UDIMM interface limit what the kit can do in practice?

As unbuffered ECC UDIMMs they connect directly to the memory controller without a register, so maximum capacity and speed depend on the board's unbuffered DIMM slot count and signal integrity.

What physical clearance is needed to fit the four 32 GB sticks side by side?

Each module is a standard-height 288-pin DDR4 UDIMM without a heat spreader, so they occupy four adjacent DIMM slots with no extra vertical clearance beyond the bare PCB.

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