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Two green circuit boards with black chips, no heat spreaders, gold edge connectors

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 3200 CL22 1.2V 288-pin UDIMM Kit for ASRock B660M memory upgrade

SKU CH-YASS-5P6CH

16 GB dual-channel DDR4-3200 CL22 kit validated for ASRock B660M motherboards

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 3200 (PC4 25600)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB dual-channel kit lifts multitasking headroom
  • 3200 MT/s DDR4 matches B660M supported speed
  • CL22 latency keeps timing stable under load
  • 2 V operation reduces power draw and heat
  • 288-pin UDIMM form factor fits standard desktop slots

Compatibility with ASRock B660M

This NEMIX RAM kit delivers 16GB of DDR4 memory across two 8GB modules. It is validated for ASRock B660M-HDV, B660M-ITX/ac and B660M-ITX/eDP motherboards. The kit suits desktop PC owners seeking a straightforward capacity upgrade for these specific boards.

Thermals and power draw

Each module operates at 1.20V without a heat spreader, relying on standard case airflow for cooling. The unbuffered, non-ECC design draws minimal power during typical desktop workloads. Silent operation is assured as the modules have no moving parts.

Build integration

The 288-pin UDIMM form factor fits standard DDR4 desktop slots on the compatible ASRock boards. Dual-rank 1Rx8 organisation populates two slots, leaving remaining slots free for future expansion. Installation requires no extra cables, drivers or configuration beyond seating the modules.

Highlights

  • 16 GB dual-channel kit lifts multitasking headroom
  • 3200 MT/s DDR4 matches B660M supported speed
  • CL22 latency keeps timing stable under load
  • 2 V operation reduces power draw and heat
  • 288-pin UDIMM form factor fits standard desktop slots

Specifications

BrandNEMIX RAM
SeriesASRock Gaming Motherboard Compatible Series Memory
ModelASRock DDR4 3200MHZ Non-ECC Unbuffered UDIMM
Part NumberMD25600-818K2
Capacity16GB (2 x 8GB)
SpeedDDR4 3200 (PC4 25600)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemASRock
CAS LatencyCL22
Heat SpreaderNo
Type288-Pin DDR4 UDIMM
Rank1Rx8
FeaturesDDR4 Non- ECC Unbuffered UDIMM Motherboard Compatible
Package Content16GB (2X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

How do I install the 288-pin DDR4 UDIMM modules on my ASRock B660M board, and what step is often missed?

Align the notch on each 288-pin module with the slot key, press down firmly until both side clips click, then verify in BIOS that the kit runs at DDR4 3200 with CL22 timings — the step most people skip is checking the BIOS speed setting after the physical install.

What maintenance or replacement will the 16GB (2x8GB) kit need later?

No scheduled maintenance is required; the modules have no heat spreader and run at 1.20 V, so only replace them if a memory test reports errors or you need more than 16 GB capacity.

What limit appears first under sustained load with these CL22 1Rx8 modules?

The CAS latency of 22 cycles at DDR4 3200 is the first bottleneck during prolonged heavy workloads, as tighter-timed kits would respond faster while these prioritise stability at the rated speed.

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