Holiday Shipping Details & Extended Holiday Returns 
The A4X20 is the latest, 5th generation of Noctua is award-winning Series of 120mm size premium-quality quiet CPU coolers. Conceived to push the envelope of the 120mm form factor,
it combines two of Noctua is flagship model NF-A12x25 PWM 120mm fans with a completely redesigned heatsink featuring 7 heatpipes and an increased fin surface area for superior heat dissipation
This way, the A4X20 can rival the performance of many 140mm size coolers while offering 120mm class case and PCIe compatibility. Topped off with the trusted,
pro-grade SecuFirm2 multi-socket mounting system, Noctua is proven NT-H1 thermal compound and a full 6-year manufacturer is warranty, the A4X20 is a deluxe choice that combines top-tier performance with excellent compatibility and outstanding quietness of operation.
1.140mm performance in 120mm size
2.100% RAM compatibility on LGA115x and AM4
3.Classic 120mm tower size for excellent case and PCIe compatibility
4.Dual A4X20 120mm fans
5.SecuFirm2 for LGA1150, LGA1151, LGA1155, LGA1156, LGA2066, LGA2011-0, LGA2011-3, & AM2/AM2+/AM3/AM3+/AM4/FM1/FM2/FM2+
About this item
- Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- 40x20mm size ideal for 1U servers or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs
- 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 5000rpm maximum speed (4400rpm with supplied Low-Noise Adaptor)
- Includes anti-vibration mounts, fan screws, extension cable, y-cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers