---
title: "140mm Fan — £30K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/business-industry-science/140mm-fan"
last_updated: "2026-07-31T13:09:05.721Z"
locale: en
meta:
description: "Niche score 28/100 · £30K/yr market · 57K searches/yr · £18.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 28/100 · £30K/yr market · 57K searches/yr · £18.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "140mm Fan — £30K/yr Amazon UK Niche (2026) - Flapen"
---
# **140mm fan**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 7Growth 30Conversion 36Competition 27Returns 49Price range 56Avg price 83Brand share 0Review moat 25Quality gap 19
**Avg price**
**Great****£18.07**
avg listing price — sweet spot $15–$100
**Price range**
**Good****£4.74–£27.98**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Okay****3.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****2.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+3.9%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****69%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****3,970.62**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****£30K**
£30K/yr · 57K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, 140mm fan is a £30K/yr Amazon United Kingdom market (57K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov. Verdict: Skip it — 28/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **140mm fan market data**
- **Units sold / yr**
- **3K–3K**
- avg 100–250/product
- **Revenue / yr**
- **£45K–£54K**
- units × avg price
- **Conversion rate**
- **2.9%**
- **Avg BSR**
- **#65**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **69%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **185 days**
## **Competition & brand share**
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**4 **▼falling
**Sellers**
**38**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**69%**
Top 20: 100%
**Open market**
**0%**
- Noctua57% - Corsair28% - Thermalright8% - be quiet!7% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +3.9% search growth over the last 90 days.
3K2KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Oct, Nov · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/uk/business-industry-science/140mm-fan/trend)
## **Top 140mm fan search terms**
- **140mm case fan**24K/yr-1.2%0.9% conv. - **140mm fan**13K/yr+3.6%0.9% conv. - **noctua 140mm fan**11K/yr+11.7%2.6% conv. - **pc fans 140mm**3K/yr+70.5%0.8% conv. - **noctua 140mm**3K/yr+18.6%3.0% conv. - **140mm fans**3K/yr-30.9%0.0% conv. [**All search terms **](https://flapen.com/research/uk/business-industry-science/140mm-fan/search-terms)
## **Top 140mm fan products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%£3K20%£6K30%£9K40%£12K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**CORSAIR RS140 140mm PWM Fans Daisy-Chain Connection Low-Noise Magnetic Dome Bearing Dual Pack Black**Corsair**£17.87**4.5★3,786 rev](https://www.amazon.co.uk/dp/B0D49P65L2) [2**Noctua NF-P14s redux-1500 PWM High Performance Cooling Fan 4-Pin 1500 RPM (140mm Grey)**Noctua**£12.80**4.7★6,373 rev](https://www.amazon.co.uk/dp/B00KF7O58G) [3**Noctua NF-A14x25 G2 PWM Premium-Quality Quiet 140mm PC Fan 4-pin (Brown)**Noctua**£27.98**4.8★485 rev](https://www.amazon.co.uk/dp/B0DDY14DQD) [4**Noctua NF-A14 iPPC-3000 PWM Heavy Duty Cooling Fan 4-Pin 3000 RPM (140mm Black)**Noctua**£23.57**4.6★3,483 rev](https://www.amazon.co.uk/dp/B00KFCRF1A) [5**Thermalright TL-C14C-S Case Fan High Performance Cooler Fan with 1500RPM Speed 4-PIN PWM with S-FDB Bearing (140mm ARGB)**Thermalright**£4.74**4.6★21 rev](https://www.amazon.co.uk/dp/B0CJJM9J69)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Noctua NF-A14x25 G2 PWM Premium-Quality Quiet 140mm PC Fan 4-pin (Brown)**Noctua**£27.98**485 rev1y ago](https://www.amazon.co.uk/dp/B0DDY14DQD) [**CORSAIR RS140 140mm PWM Fans Daisy-Chain Connection Low-Noise Magnetic Dome Bearing Dual Pack Black**Corsair**£17.87**3,786 rev2y ago](https://www.amazon.co.uk/dp/B0D49P65L2) [**CORSAIR RS140 ARGB 140mm PWM Fans Daisy-Chain Connection Low-Noise Magnetic Dome Bearing Dual Pack Black**Corsair**£25.11**3,786 rev2y ago](https://www.amazon.co.uk/dp/B0D49NN28D) [**Thermalright TL-C14C-S Case Fan High Performance Cooler Fan with 1500RPM Speed 4-PIN PWM with S-FDB Bearing (140mm ARGB)**Thermalright**£4.74**21 rev2y ago](https://www.amazon.co.uk/dp/B0CJJM9J69) [**be quiet! Pure Wings 3 140mm PWM Fan High Top-End Speed Low Minimum RPM Optimized Frame Newly Designed Blades Extraordinary Air Pressure Very Quiet Operation Rifle Bearing**be quiet!**£11.28**898 rev3y ago](https://www.amazon.co.uk/dp/B0CM3Z4XFB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Thermalright TL-C14C-S Case Fan High Performance Cooler Fan with 1500RPM Speed 4-PIN PWM with S-FDB Bearing (140mm ARGB)**Thermalright**£4.74**4.6★**▲ 95%**](https://www.amazon.co.uk/dp/B0CJJM9J69) [**be quiet! Pure Wings 3 140mm PWM Fan High Top-End Speed Low Minimum RPM Optimized Frame Newly Designed Blades Extraordinary Air Pressure Very Quiet Operation Rifle Bearing**be quiet!**£11.28**4.8★**▲ 72%**](https://www.amazon.co.uk/dp/B0CM3Z4XFB) [**Noctua NF-A12x25 LS-PWM Ultra Quiet Silent Fan 4-Pin (120mm Brown)**Noctua**£23.86**4.8★**▲ 36%**](https://www.amazon.co.uk/dp/B092DNHCGT) [**CORSAIR RS140 ARGB 140mm PWM Fans Daisy-Chain Connection Low-Noise Magnetic Dome Bearing Dual Pack Black**Corsair**£25.11**4.5★**▲ 27%**](https://www.amazon.co.uk/dp/B0D49NN28D) [**Noctua NF-P14s redux-1200 PWM Quiet Fan 4-Pin 1200 RPM (140mm Grey)**Noctua**£14.53**4.6★**▲ 22%**](https://www.amazon.co.uk/dp/B00KF7Q4WG)
**~~View all trending →~~**
## **What buyers say about 140mm fan**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**28%
*“Was £5 so cheap”*
**Quality-Overall**18%
*“Deserves its reputation”*
**Size-Overall**15%
*“Easy to fit”*
**Ease Of Cleaning**10%
*“that's just my cleaning habits”*
**Noise Cancellation**10%
*“Quiet on min load”*
**Heating**5%
*“Impressive cooling really helps move heat out of the case effectively”*
**Color**3%
*“RGB looks nice”*
**Spray/Flow**3%
*“Airflow is good”*
### **What buyers complain about **
**Noise Level**50%
*“But boy it is NOISY”*
**Heating**17%
*“I'm not hitting thermal limits any more”*
**Assembly/Installation**17%
*“Installation was very fiddly in my aged Corsair case”*
### **Top return reasons **
**Size-Overall**44%
**Compatibility-Overall**13%
**Functionality-Overall**9%
**Connectivity-Overall**6%
**Noise Level**5%
**Add-Ons/Attachments**4%
**Defective Material/Parts**3%
**Advertised Vs Actual Product**3%
**Length**3%
**Durability**2%
## **Common questions**
- **Is 140mm fan profitable to sell on Amazon United Kingdom?**
- The niche generates £30K/yr across 13 tracked products. 90-day search growth is +3.9%. Flapen's verdict: Skip it (28/100).
- **How competitive is the 140mm fan niche?**
- 4 brands and 38 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 140mm fan?**
- Top complaints mined from reviews: Noise Level, Heating, Assembly/Installation. The return rate is 3.0%.
- **When does demand for 140mm fan peak?**
- Demand peaks in Oct–Nov; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the 140mm fan niche?**
- Listings span £4.74–£27.98; the average listing price is £18.07 (sweet spot $15–$100). The average incumbent carries 3,971 reviews — the moat a new listing must climb.
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