---
title: "9v Power Supply — $283K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/musical-instruments/9v-power-supply"
last_updated: "2026-08-08T01:47:49.590Z"
locale: en
meta:
description: "Niche score 48/100 · $283K/yr market · 244K searches/yr · $11.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $283K/yr market · 244K searches/yr · $11.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "9v Power Supply — $283K/yr Amazon US Niche (2026) - Flapen"
---
# **9v power supply**
**Skip it**
Soft demand (-1.0% this quarter) — this niche doesn't clear our bar today.
Market size 50Growth 24Conversion 87Competition 40Returns 48Price range 69Avg price 46Brand share 58Review moat 43Quality gap 32
**Conversion**
**Great****10.1%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$5.74–$36.04**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****70%**
top-5 brand share — brands hold most of the demand
**Market size**
**Good****$283K**
$283K/yr · 244K searches
**Returns**
**Okay****3.2%**
return rate — above 5% kills the launch gate
**Avg price**
**Okay****$11.51**
avg listing price — sweet spot $15–$100
**Review moat**
**Okay****2,214.33**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****61%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-1.0%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 9v power supply is a $283K/yr Amazon United States market (244K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Dec. Verdict: Skip it — 48/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **9v power supply market data**
- **Units sold / yr**
- **25K–30K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$288K–$345K**
- units × avg price
- **Conversion rate**
- **10.1%**
- **Avg BSR**
- **#49**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **81%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **194 days**
## **Competition & brand share**
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▲rising
**Sellers**
**40**
**Top-5 brand share**
**70%**
Top 20: 100%
**Top-5 click share**
**61%**
Top 20: 99%
**Open market**
**25%**
- JOYO21% - WUKUR18% - D'Addario17% - GuanTing9% - Cysljoyful6% - JOVNO5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.0% search growth over the last 90 days.
6K4KSpike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/musical-instruments/9v-power-supply/trend)
## **Top 9v power supply search terms**
- **9v power supply**70K/yr-9.0%8.8% conv. - **9v dc power supply**31K/yr+17.3%9.9% conv. - **9v power adapter**15K/yr+50.5%3.7% conv. - **9v power supply for guitar pedals**18K/yr-15.0%10.3% conv. - **9v pedal power supply**11K/yr+16.4%5.9% conv. - **9v ac adapter**14K/yr-7.2%6.1% conv. - **9v adapter**11K/yr+4.1%6.1% conv. - **9 volt power supply**8K/yr+22.9%8.7% conv. - **9v dc power adapter**4K/yr+126.7%8.3% conv. - **dc9v power cord**7K/yr-7.1%10.1% conv. [**All search terms **](https://flapen.com/research/us/musical-instruments/9v-power-supply/search-terms)
## **Top 9v power supply 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%5%$14K10%$28K15%$42K20%$57K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**WUKUR 9V Power Supply for Guitar Pedals Compatible with Boss PSA Adapter 9V DC for Pedals Like ME-80 ME-70 ME-25 GT-100 GT-1 GT-10 BR-80 RC-1 RC-3 5.9FT/1.8M Guitar Pedal Power Cable for Effects**WUKUR**$10.00**4.6★3,169 rev](https://www.amazon.com/dp/B087JJ1JHX) [2**DAddario Accessories PW-CT-9V DC Power Adapter Pedalboard Supply - For Pedal Board and Other Devices Requiring 9V 800mA Max Current**D'Addario**$13.11**4.6★16,887 rev](https://www.amazon.com/dp/B00191WVF6) [3**JOYO DC 9V 500mA Guitar Pedal Power Supply Adapter AC Wall Charger Adapter One Spot 5.5mmX2.1mm Compatible for Most Effect Pedals (Tip Negative)**JOYO**$9.41**4.7★320 rev](https://www.amazon.com/dp/B0DD2X5Q56) [4**AC Adapter 9V 2A Power Supply AC110V to DC9V 2000mA 1500mA 1000mA 500mA Power Driver 8 DC Plug Tips 9 Volt Converter Inverter Charger Transformer ac dc Adapter**GuanTing**$8.49**4.5★1,378 rev](https://www.amazon.com/dp/B087ZWS7CG) [5**JOYO DC 9V Guitar Pedal Power Supply (800mA -1A) AC Wall Charger Adapter with 4 Way Daisy Chain Pedal Cables (8.8 FT) Compatible for Most Effect Pedals (Tip Negative)**JOYO**$12.37**4.6★2,144 rev](https://www.amazon.com/dp/B092DFNP6D)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**9V AC Adapter 9Volt 1Amp DC Power Supply 100-240V 50/60Hz to DC 9V Power Cord 10FT 5.5x2.5mm Plug with1 Reverse Polarity Converter Cable Compatible with Electronic Devices Below 1A 9W**Litbla**$5.74**29 rev10mo ago](https://www.amazon.com/dp/B0FMFRT69N) [**Guitar Pedal Power Supply 9V DC 1A BOSS PSA Adapter DC 9V Power Supply Cord for Most Brands of Guitar Affect Pedals Keyboard & Required 9 Volt 1000mA 800mA 500mA - Center Negative - 6.6FT**JOVNO**$7.73**43 rev11mo ago](https://www.amazon.com/dp/B0FL2HQNQH) [**Dexpt DC 9V Power Supply for Guitar Pedals 9V 1A Adapter Fit for Boss PSA-120S ME-90 ME-80 RC-5 RC-30 RC-505 GT-1 GT-1B DS-1 Effects Pedals - UL Listed Low Noise Center Negative Power Cord**Dexpt**$8.30**72 rev1y ago](https://www.amazon.com/dp/B0FBR7PZ4F) [**Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger 100V-240V AC to DC Converter with 14 Tips Polarity Converter and 4-Way Power Splitter Cable**Wefomey**$17.99**602 rev1y ago](https://www.amazon.com/dp/B0DMSDX732) [**JOYO DC 9V 500mA Guitar Pedal Power Supply Adapter AC Wall Charger Adapter One Spot 5.5mmX2.1mm Compatible for Most Effect Pedals (Tip Negative)**JOYO**$9.41**320 rev1y ago](https://www.amazon.com/dp/B0DD2X5Q56)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger 100V-240V AC to DC Converter with 14 Tips Polarity Converter and 4-Way Power Splitter Cable**Wefomey**$17.99**4.5★**▲ 221%**](https://www.amazon.com/dp/B0DMSDX732) [**NC 9V 2000mA Power Supply 100-240V AC to 9Volt DC 2A Switching Supply Power Adapter 5.5 X2.52.1mm US Plug AC Adapter Transformer Wall Adapter Black**NC**$7.48**4.4★**▲ 159%**](https://www.amazon.com/dp/B092V92YLW) [**Guitar Pedal Power Supply 9V DC 1A BOSS PSA Adapter DC 9V Power Supply Cord for Most Brands of Guitar Affect Pedals Keyboard & Required 9 Volt 1000mA 800mA 500mA - Center Negative - 6.6FT**JOVNO**$7.73**4.6★**▲ 131%**](https://www.amazon.com/dp/B0FL2HQNQH) [**AZOR Guitar Effect Pedal Power Supply Adapter AC DC 9V Power Cord Fit for 9V1A Guitar Effects Pedal Keyboard Center Negative**AZOR**$6.62**4.6★**▲ 84%**](https://www.amazon.com/dp/B0CPP283CV) [**JOYO DC 9V 500mA Guitar Pedal Power Supply Adapter AC Wall Charger Adapter One Spot 5.5mmX2.1mm Compatible for Most Effect Pedals (Tip Negative)**JOYO**$9.41**4.7★**▲ 79%**](https://www.amazon.com/dp/B0DD2X5Q56)
**~~View all trending →~~**
## **What buyers say about 9v power supply**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Advertised Vs Actual Product**16%
*“As advertised”*
**Value For Money**16%
*“Good price”*
**Quality-Overall**14%
*“The build quality feels solid”*
**Efficiency**6%
*“Universal works great”*
**Charging**5%
*“charger”*
**Compatibility-Overall**4%
*“It is compatible with all of my pedals”*
**Ease Of Use**4%
*“Very Handy”*
**Noise Cancellation**3%
*“Works well with low noise”*
**Battery Life**3%
*“Now I can save on batteries”*
**Strength**3%
*“No issues, solidly built”*
### **What buyers complain about **
**Noise Level**26%
*“they all make noise”*
**Functionality-Overall**10%
*“It did not power up”*
**Charging**9%
*“It does not charge one single item”*
**Durability**7%
*“Died first use”*
**Quality-Overall**7%
*“I would not recommend buying this as quality control is lacking”*
**Compatibility-Overall**6%
*“Unfortunately, this product didn't have the compatible tip for it”*
**Size-Overall**4%
*“Didnt fit for my speaker”*
**Connectivity-Overall**3%
*“ruin your item connected”*
**Amplification**2%
*“there very reliable just wish they were rated for more amps for different applications like 20 amp dc pumps”*
**Flammable**2%
*“Cheap fire hazard”*
### **Top return reasons **
**Compatibility-Overall**30%
**Size-Overall**23%
**Functionality-Overall**14%
**Charging**7%
**Defective Material/Parts**5%
**Connectivity-Overall**3%
**Advertised Vs Actual Product**3%
**Noise Level**3%
**Amplification**2%
**Value For Money**2%
## **Common questions**
- **Is 9v power supply profitable to sell on Amazon United States?**
- The niche generates $283K/yr across 21 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -1.0%. Flapen's verdict: Skip it (48/100).
- **How competitive is the 9v power supply niche?**
- 17 brands and 40 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 70% of demand.
- **What do buyers complain about in 9v power supply?**
- Top complaints mined from reviews: Noise Level, Functionality-Overall, Charging. The return rate is 3.2%.
- **When does demand for 9v power supply peak?**
- Demand peaks in Dec; the busiest month runs 1.4× the quietest.
- **What does it cost to enter the 9v power supply niche?**
- Listings span $5.74–$36.04; the average listing price is $11.51 (sweet spot $15–$100). The average incumbent carries 2,214 reviews — the moat a new listing must climb.
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