---
title: "850w Psu — £629K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/computers-accessories/850w-psu"
last_updated: "2026-07-31T15:04:26.016Z"
locale: en
meta:
description: "Niche score 40/100 · £629K/yr market · 251K searches/yr · £75.89 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · £629K/yr market · 251K searches/yr · £75.89 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "850w Psu — £629K/yr Amazon UK Niche (2026) - Flapen"
---
# **850w psu**
**Skip it**
Brand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Market size 65Growth 20Conversion 41Competition 7Returns 45Price range 95Avg price 84Brand share 6Review moat 84Quality gap 35
**Price range**
**Incredible****£48.91–£98.42**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****310.5**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****£75.89**
avg listing price — sweet spot $15–$100
**Market size**
**Good****£629K**
£629K/yr · 251K searches
**Returns**
**Okay****3.4%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.3%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-10.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****91%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****98%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=uk&signal=high_price "Avg price > $50")
According to Flapen's Amazon United Kingdom niche tracking, 850w psu is a £629K/yr Amazon United Kingdom market (251K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 40/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **850w psu market data**
- **Units sold / yr**
- **8K–10K**
- avg 500–750/product
- **Revenue / yr**
- **£607K–£759K**
- units × avg price
- **Conversion rate**
- **3.3%**
- **Avg BSR**
- **#19**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **2.4%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **172 days**
## **Competition & brand share**
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▼falling
**Sellers**
**57**
**Top-5 brand share**
**98%**
Top 20: 100%
**Top-5 click share**
**91%**
Top 20: 100%
**Open market**
**0%**
- Corsair63% - MSI21% - be quiet!7% - NZXT3% - GAMEMAX3% - Gigabyte2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -10.8% search growth over the last 90 days.
10K6KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/uk/computers-accessories/850w-psu/trend)
## **Top 850w psu search terms**
- **850w psu**75K/yr-12.0%2.5% conv. - **psu 850w**36K/yr-19.1%2.7% conv. - **850w psu gold**24K/yr-15.7%2.8% conv. - **power supply 850w**24K/yr-4.3%2.5% conv. - **800w psu**17K/yr-24.1%1.5% conv. - **corsair rm850x**12K/yr-7.7%6.2% conv. - **corsair rm850e**8K/yr+48.9%8.7% conv. - **850w power supply**9K/yr-9.2%2.1% conv. - **rm850e**5K/yr+3.3%6.1% conv. - **rm850x**7K/yr-27.3%5.0% conv. [**All search terms **](https://flapen.com/research/uk/computers-accessories/850w-psu/search-terms)
## **Top 850w psu 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%15%£94K30%£189K45%£283K60%£378K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable ATX 3.1 & PCIe 5.1 Compliant Cybenetics Gold Efficiency 105C-Rated Capacitors Modern Standby Mode Black**Corsair**£78.00**4.6★688 rev](https://www.amazon.co.uk/dp/B0DMTL43VR) [2**MSI MAG A850GL PCIE5 Power Supply Unit 850W 80 Plus Gold Fully Modular ATX 3.0 PCIe 5.0 GPU Support Black Flat Cables 7 Year Warranty**MSI**£75.95**4.6★916 rev](https://www.amazon.co.uk/dp/B0C7LJFVZN) [3**CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply ATX 3.1 Compliant PCIe 5.1 Support Cybenetics Gold Efficiency Native 12V-2x6 Connector Black**Corsair**£98.42**4.7★278 rev](https://www.amazon.co.uk/dp/B0D9C16979) [4**be quiet! Pure Power 13 M 850W Power Supply 80 PLUS Gold Certification ATX 3.1 PSU Support For PCIe 5.1 GPUs Semi-Passive 120mm be quiet! Fan LLC Technology Single Rail For Overclocked GPUs**be quiet!**£74.40**4.8★9 rev](https://www.amazon.co.uk/dp/B0FNDGY16H) [5**CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable ATX 3.1 & PCIe 5.1 Compliant Cybenetics Gold Efficiency 105C-Rated Capacitors Modern Standby Mode White**Corsair**£84.28**4.6★39 rev](https://www.amazon.co.uk/dp/B0F3DRP6B3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**be quiet! Pure Power 13 M 850W Power Supply 80 PLUS Gold Certification ATX 3.1 PSU Support For PCIe 5.1 GPUs Semi-Passive 120mm be quiet! Fan LLC Technology Single Rail For Overclocked GPUs**be quiet!**£74.40**9 rev11mo ago](https://www.amazon.co.uk/dp/B0FNDGY16H) [**Gigabyte UD850GM PG5 V2 80 Plus Gold Fully Modular 850w PCIe 5.0 Power Supply Unit ATX 3.1 12VHPWR GPU Connector Flat Cables 10 Year Warranty**Gigabyte**£69.20**6 rev1y ago](https://www.amazon.co.uk/dp/B0FDQYFJWC) [**CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable ATX 3.1 & PCIe 5.1 Compliant Cybenetics Gold Efficiency 105C-Rated Capacitors Modern Standby Mode White**Corsair**£84.28**39 rev1y ago](https://www.amazon.co.uk/dp/B0F3DRP6B3) [**CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable ATX 3.1 & PCIe 5.1 Compliant Cybenetics Gold Efficiency 105C-Rated Capacitors Modern Standby Mode Black**Corsair**£78.00**688 rev1y ago](https://www.amazon.co.uk/dp/B0DMTL43VR) [**CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply ATX 3.1 Compliant PCIe 5.1 Support Cybenetics Gold Efficiency Native 12V-2x6 Connector Black**Corsair**£98.42**278 rev1y ago](https://www.amazon.co.uk/dp/B0D9C16979)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**be quiet! Pure Power 13 M 850W Power Supply 80 PLUS Gold Certification ATX 3.1 PSU Support For PCIe 5.1 GPUs Semi-Passive 120mm be quiet! Fan LLC Technology Single Rail For Overclocked GPUs**be quiet!**£74.40**4.8★**▲ 268%**](https://www.amazon.co.uk/dp/B0FNDGY16H) [**NZXT C850 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 850 Watts - 80 PLUS Gold - 12V-2x6 Connector - Zero Fan Mode - 100% Japanese Capacitors - Black**NZXT**£77.98**4.6★**▲ 117%**](https://www.amazon.co.uk/dp/B0DCNCGR2R) [**Gigabyte UD850GM PG5 V2 80 Plus Gold Fully Modular 850w PCIe 5.0 Power Supply Unit ATX 3.1 12VHPWR GPU Connector Flat Cables 10 Year Warranty**Gigabyte**£69.20**4.2★**▲ 81%**](https://www.amazon.co.uk/dp/B0FDQYFJWC) [**CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable ATX 3.1 & PCIe 5.1 Compliant Cybenetics Gold Efficiency 105C-Rated Capacitors Modern Standby Mode Black**Corsair**£78.00**4.6★**▲ 35%**](https://www.amazon.co.uk/dp/B0DMTL43VR) [**CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable ATX 3.1 & PCIe 5.1 Compliant Cybenetics Gold Efficiency 105C-Rated Capacitors Modern Standby Mode White**Corsair**£84.28**4.6★**▲ 14%**](https://www.amazon.co.uk/dp/B0F3DRP6B3)
**~~View all trending →~~**
## **What buyers say about 850w psu**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Build quality feels solid”*
**Assembly/Installation**14%
*“brilliant very easy to set up”*
**Value For Money**10%
*“Great value for money”*
**Durability**7%
*“it seems that it will be durable”*
**Design-Overall**6%
*“was easy to build”*
**Advertised Vs Actual Product**5%
*“Worked as expected”*
**Functionality-Overall**5%
*“Perfect modular power supply especially for first time builder really simple”*
**Size-Overall**4%
*“Everything fit perfectly”*
**Strength**4%
*“overall its a strong”*
**Noise Cancellation**4%
*“its completely silent”*
### **What buyers complain about **
**Noise Level**25%
*“made a clicking noise the entire time i had it”*
**Durability**18%
*“Started to fail after only 4 months”*
**Advertised Vs Actual Product**12%
*“Not as described”*
**Product Condition**6%
*“even though the product was supposed to be 'brand new'”*
**Defective Material/Parts**6%
*“2 different units Dead on arrival”*
**Audio Quality**4%
*“the fan is barely audible”*
**Weight Heavy**3%
*“The PSU itself is reassuringly heavy”*
**Instructions/User Manual/Troubleshooting**1%
*“No instructions,”*
### **Top return reasons **
**Functionality-Overall**23%
**Compatibility-Overall**15%
**Defective Material/Parts**15%
**Noise Level**12%
**Size-Overall**10%
**Connectivity-Overall**4%
**Socket/Port/Plug**4%
**Constant Reboot Or Restart**4%
**Product Condition**3%
**Value For Money**2%
## **Common questions**
- **Is 850w psu profitable to sell on Amazon United Kingdom?**
- The niche generates £629K/yr across 8 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -10.8%. Flapen's verdict: Skip it (40/100).
- **How competitive is the 850w psu niche?**
- 6 brands and 57 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 98% of demand.
- **What do buyers complain about in 850w psu?**
- Top complaints mined from reviews: Noise Level, Durability, Advertised Vs Actual Product. The return rate is 3.4%.
- **When does demand for 850w psu peak?**
- Demand peaks in Nov–Dec; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the 850w psu niche?**
- Listings span £48.91–£98.42; the average listing price is £75.89 (sweet spot $15–$100). The average incumbent carries 311 reviews — the moat a new listing must climb.
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