Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctuas AAO frame, the NF-A12x15 is a highly optimised, premium quality quiet fan in size 120x15mm. Its 15mm slim design makes the NF-A12x15 ideal for space-restricted applications such as low-profile CPU coolers or HTPC cases. The FLX version provides 1850/1400/950rpm speed settings via the supplied Low-Noise Adaptors in order to allow full flexibility in fine-tuning the fan for maximum ventilation performance or near-silent operation. Its superb running smoothness, reference-class SSO2 bearing and Noctuas trusted premium quality make it an elite choice for the highest demands.
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctuas AAO frame, the NF-A12x15 is a highly optimised, premium quality quiet fan in size 120x15mm. Its 15mm slim design makes the NF-A12x15 ideal for space-restricted applications such as low-profile CPU coolers or HTPC cases. The FLX version provides 1850/1400/950rpm speed settings via the supplied Low-Noise Adaptors in order to allow full flexibility in fine-tuning the fan for maximum ventilation performance or near-silent operation. Its superb running smoothness, reference-class SSO2 bearing and Noctuas trusted premium quality make it an elite choice for the highest demands.
in 3 offers
The lowest price for Noctua NF-A12x15 Flx 120mm 1850RPM Fan right now is $34.83 at Quiet PC, compared across 3 retailers.
The all-time low was $25.30 on 12 Oct 2025 — today's price is 38% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 10 June 2026.
Noctua NF-A12x15 Flx 120mm 1850RPM Fan
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctuas AAO frame, the NF-A12x15 is a highly optimised, premium quality quiet fan in size 120x15mm. Its 15mm slim design makes the NF-A12x15 ideal for space-restricted applications such as low-profile CPU coolers or HTPC cases. The FLX version provides 1850/1400/950rpm speed settings via the supplied Low-Noise Adaptors in order to allow full flexibility in fine-tuning the fan for maximum ventilation performance or near-silent operation. Its superb running smoothness, reference-class SSO2 bearing and Noctuas trusted premium quality make it an elite choice for the highest demands.
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctuas AAO frame, the NF-A12x15 is a highly optimised, premium quality quiet fan in size 120x15mm. Its 15mm slim design makes the NF-A12x15 ideal for space-restricted applications such as low-profile CPU coolers or HTPC cases. The FLX version provides 1850/1400/950rpm speed settings via the supplied Low-Noise Adaptors in order to allow full flexibility in fine-tuning the fan for maximum ventilation performance or near-silent operation. Its superb running smoothness, reference-class SSO2 bearing and Noctuas trusted premium quality make it an elite choice for the highest demands.
Last updated at 10/06/2026 22:44:59
Noctua NF-A12x15 FLX 12V 1850RPM 120x15mm Slim-line Fan
Delivery $19.51
Noctua Nf-a12x15 Flx 120 Mm Fan Golden
Delivery $19.99
Noctua NF-A12x15 FLX, Premium Quiet Slim Fan, 3-Pin (120x15mm, Brown)
Delivery $9
originally posted on mwave.com.au
Best of breed PWM fans. I have three of them as intake at the bottom of the ASUS Prime case right below the RTX 4090 leaving enough space for the GPU. They are dead quiet. I have one for exhaust at the back of the case.
originally posted on ebay.com
Best fans for radiators. Brought my cpu temps (i5-13600kf) down 5 degrees. Kinda ugly but its ok
originally posted on ebay.com
Thinner than the normal 25.4mm fan, just 15mm, for those tight spaces. Has the 4pin PWM connector instead of running at a fixed speed (3pin.) Max rpm is about 1850. It is very quiet at these speeds. The only complaint I have about the fan is that I wish it would spin at a faster rpm, maybe even 3000, and let the motherboard slow it down to 1800 when needed. This way it would move more air than it does now. I like that it's quiet, but I would also like more airflow.
| Mounting Hole Spacing | 105 x 105 mm |
| Cable Length | 20 cm + 30 cm NA-EC1 Extension Cable |
| Bearing | SSO2 |
| Blade Geometry | A - Series with Flow Acceleration Channels |
| Frame Technology | AAO (Advanced Acoustic Optimisation) |
Noctua NF-A12x15 FLX 12V 1850RPM 120x15mm Slim-line Fan
Delivery $19.51
Noctua Nf-a12x15 Flx 120 Mm Fan Golden
Delivery $19.99
Noctua NF-A12x15 FLX, Premium Quiet Slim Fan, 3-Pin (120x15mm, Brown)
Delivery $9
Best of breed PWM fans. I have three of them as intake at the bottom of the ASUS Prime case right below the RTX 4090 leaving enough space for the GPU. They are dead quiet. I have one for exhaust at the back of the case.
Best fans for radiators. Brought my cpu temps (i5-13600kf) down 5 degrees. Kinda ugly but its ok
Thinner than the normal 25.4mm fan, just 15mm, for those tight spaces. Has the 4pin PWM connector instead of running at a fixed speed (3pin.) Max rpm is about 1850. It is very quiet at these speeds. The only complaint I have about the fan is that I wish it would spin at a faster rpm, maybe even 3000, and let the motherboard slow it down to 1800 when needed. This way it would move more air than it does now. I like that it's quiet, but I would also like more airflow.
One place in my HTPC case I did not have space for a normal fan, and this slim one was a good fit. It is very silent, and seems to be working good. Noctua always knows what they are doing. My system is temp controlled, and when I do normal light duty tasks, I can not hear my computer. Reccomended
Best fans you can buy. Worth the extra cost, the added accessories are great too, include a Y splitter + extension cable
As title - these looks a feel really high quality and are almost silent even on full. Comes with splitter, extensions, everything to fit in most cases.
Best slim 120s on the market, the anti-vibration pads made for a perfect fit between the side panel and my GPU deshroud mod.Extremely quiet and efficient, temps on my 3080 dropped like 15°C after swapping these out for the stock fans!
Replaced the fans on my NZXT Kraken X53 with these so that for the same airflow it was quieter, and has more space in my IQUNIX ZX-1 Mini-ITX case between the radiator mounting plate and the fans. Previously there was no spacing and it was causing some fan whine with the NZXT fans. Moving to these gave me the ability to create that gap. These are also just generally quieter.
I just tried to replace my Corsair SP120L fans on my H80i GT. I'm afraid, they can't keep up with the SP120L high performance fans. They're still very quiet at full pelt but the SP120L's have the extra power that results in a 5degree+ lower temperature on heavy loads albeit with jet engine type noise levels. My SP120Ls very rarely went to full load but my A12's run close to full speed at the merest twitch of the CPU being used. These fans are probably best suited for those that want very quiet fans at medium CPU loads. They're unfortunately not 'quieter' high performance fans. I probably should have gone for the NF-F12's. Ah well, I'm sure I can find a use for them on a different machine where they will be more suitable.
Very quiet operation, anti vibration mounts easy to use and work really well.
| Mounting Hole Spacing | 105 x 105 mm |
| Cable Length | 20 cm + 30 cm NA-EC1 Extension Cable |
| Bearing | SSO2 |
| Blade Geometry | A - Series with Flow Acceleration Channels |
| Frame Technology | AAO (Advanced Acoustic Optimisation) |
