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CPU COOLING · VERIFIED EXACT WAVE 01 COMPONENT

Noctua
NH-D12L

The NH-D12L is a 145 mm dual-tower cooler built for cases that cannot take a typical 158–165 mm flagship tower. Its asymmetric single-fan layout clears normal memory slots on current mainstream sockets, but the round-frame replacement fan is less common than a standard square 120 mm fan.

Reference: Verified exact modelMPN: NH-D12LType: Dual-tower air coolerSocket support: AM5 / AM4 / LGA1851 / LGA1700 / LGA1200 / LGA115xRadiator class: Not applicable — air coolerDimensions: 145 mm tall; 125 × 113 mm footprint
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Noctua NH-D12L
MODEL PHOTOExact model shown
Best forNarrow towers and many 4U cases that still need strong air cooling
Also strongBuilds with tall memory that need an asymmetric cooler
Main limit145 mm still does not fit ultra-compact cases
Check firstA second fan is optional and changes clearance/noise
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VERIFIED EXACT WAVE 01 SHEET

Identity, specifications, compatibility and buyer guidance

Confirmed specifications

  • MPN: NH-D12L
  • Type: Dual-tower air cooler
  • Socket support: AM5 / AM4 / LGA1851 / LGA1700 / LGA1200 / LGA115x
  • Radiator class: Not applicable — air cooler
  • Dimensions: 145 mm tall; 125 × 113 mm footprint
  • Fans: 1 × NF-A12x25r PWM 120 mm round-frame
  • Warranty: 6 years
  • Clearance warning: Confirm case height and top PCIe-slot spacing

Checks before buying

MPN: NH-D12L

Amazon.ca ASIN: B09TB5KJ5V

  • 145 mm still does not fit ultra-compact cases
  • A second fan is optional and changes clearance/noise
  • Check Noctua CPU compatibility for the exact processor

Good choice for

  • Narrow towers and many 4U cases that still need strong air cooling
  • Builds with tall memory that need an asymmetric cooler

Real limitations

  • 145 mm still does not fit ultra-compact cases
  • A second fan is optional and changes clearance/noise
  • Check Noctua CPU compatibility for the exact processor

Alternatives

  • NH-U9S for a smaller 125 mm envelope
  • NH-L9a-AM5 for an ultra-low-profile AM5 system
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Product and media sources · checked August 28, 2026Official manufacturer sheet →Exact-media source →

Other useful details

Additional checks

  • Check Noctua CPU compatibility for the exact processor
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