We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four green DDR4 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 32GB (4x8GB) DDR4 3200 CL22 ECC UDIMM Kit for ASRock EPYC3451D4U-2L2T2O8R memory upgrade

SKU CH-MFFD-X79AX

32 GB kit of four 8 GB DDR4-3200 ECC UDIMM modules with CL22 latency and 1.2 V operation for the ASRock EPYC3451D4U-2L2T2O8R motherboard

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 32 GB kit expands server memory capacity
  • DDR4 3200 speed handles heavy workloads
  • CL22 latency supports stable operation
  • ECC UDIMM detects and corrects data errors
  • 2 V modules lower power consumption

System-specific ECC kit

This NEMIX RAM kit delivers 32GB of DDR4 3200 ECC unbuffered memory across four 8GB modules. It is built for the ASRock Rack EPYC3451D4U-2L2T2O8R motherboard and suits administrators who need validated capacity for server workloads.

Thermals and power

Each module runs at 1.2V without a heat spreader, relying on chassis airflow for cooling. The low voltage and unbuffered design keep power draw modest and acoustic impact negligible in typical rack environments.

Upgrade context

The kit replaces smaller or slower DDR4 ECC UDIMM populations to reach 32GB in four slots. The jump is worthwhile when the platform demands ECC integrity and the board’s qualified vendor list includes this part number.

How it compares

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

Price $265.99
Cheaper than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $8.31 per GB
Typical for this category: the median of 20,941 items is $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 lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz ECC Unbuffered UDIMM
Part numberME25600-818K4
Total capacity32 GB (4 × 8 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 rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items32 GB (4 × 8 GB) DDR4 3200 MHz PC4-25600 1Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

How do I install the four 288-pin DDR4 UDIMM modules in the ASRock EPYC3451D4U-2L2T2O8R, and what step is often missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until both retention clips click, then verify all four 8 GB sticks are recognised in BIOS before closing the case.

What maintenance or replacement will the CL22 ECC UDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts, so no scheduled maintenance is required; only a failed stick would need replacement under the lifetime warranty.

At sustained load, which limit of the 3200 MHz 1.20 V kit appears first?

The CL22 latency at 3200 MT/s is the primary timing constraint; thermal throttling is unlikely because the unbuffered UDIMMs run at standard 1.20 V without overclocking.

More in Model-Specific Memory Upgrades

Similar items