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66

extension cord

Launch it

A $48.3M/yr market growing +3.5% this quarter with returns at 1.3% — clears our launch bar.

Market size 100Growth 29Conversion 87Competition 76Returns 89Price range 57Avg price 70Brand share 86Review moat 16Quality gap 15

Market size

Incredible$48.3M

$48.3M/yr · 34.0M searches

Returns

Great1.3%

return rate — above 6% kills the launch gate

Conversion

Great9.9%

search→purchase rate — share of searches ending in a sale

Brand share

Great49%

top-5 brand share — no brand owns this niche

Competition

Great39%

top-5 click share — an open shelf

Avg price

Good$14.35

avg listing price — sweet spot $15–$100

Price range

Good$6.22–$26.70

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Okay+3.5%

90-day search growth — must beat 0% to launch

Review moat

Bad20,223.79

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, extension cord is a $48.3M/yr Amazon United States market (34.0M searches/yr). The top 5 brands hold 49% of demand. Verdict: Launch it — 66/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

Market data

Units sold / yr
1.0M–1.0M
avg 80,000–100,000/product
Revenue / yr
$14.3M–$14.3M
units × avg price
Launch success
2 of 2 new (360d)
Conversion rate
9.9%
Avg BSR
#39
Page quality
0%
Prime
100%
Sponsored
93%
Out of stock
0.0%
Avg brand age
53 months
Avg seller age
160 days

Competition

Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.

Brands

26 rising

Sellers

48

Top-5 brand share

49%

Top 20: 94%

Top-5 click share

39%

Top 20: 76%

Open market

46%

  • YISHU14%
  • SUPERDANNY11%
  • Amazon Basics10%
  • Yintar8%
  • Anker7%
  • HANYCONY5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +3.5% search growth over the last 90 days.
1.0M600KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$1.9M8%$3.9M12%$5.8M16%$7.7M1001K10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 42 tracked products in this niche — three views at once, no toggling.

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall16%

“Build quality is great”

Socket/Port/Plug13%

“Love the USB ports”

Advertised Vs Actual Product11%

“Better than expected”

Value For Money9%

“Fair price”

Charging8%

“charges well”

Ease Of Use7%

“easy to read”

Design-Overall4%

“Beautiful design”

Size-Overall4%

“Good size for travel”

Portability3%

“Convenient for travel”

Strength3%

“Solid product”

What buyers complain about

Durability18%

“Didnt last”

Socket/Port/Plug10%

“USB Ports Don't Work”

Quality-Overall9%

“Bad Quality”

Charging8%

“Slow charging”

Functionality-Overall8%

“Never worked”

Noise Level6%

“Makes noise”

Size-Overall3%

“Too short”

Value For Money2%

“crazy cost more than 1/2 the product to return it”

Heating2%

“it overheated”

Advertised Vs Actual Product2%

“FALSE ADVERTISING”

Top return reasons

Size-Overall26%
Socket/Port/Plug10%
Charging10%
Functionality-Overall9%
Advertised Vs Actual Product7%
Value For Money7%
Compatibility-Overall6%
Defective Material/Parts4%
Add-Ons/Attachments3%
Connectivity-Overall2%

Common questions

Is extension cord profitable to sell on Amazon United States?
The niche generates $48.3M/yr across 42 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +3.5%. Flapen's verdict: Launch it (66/100).
How competitive is the extension cord niche?
26 brands and 48 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 49% of demand.
What do buyers complain about in extension cord?
Top complaints mined from reviews: Durability, Socket/Port/Plug, Quality-Overall. The return rate is 1.3%.
When does demand for extension cord peak?
Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the extension cord niche?
Listings span $6.22–$26.70; the average listing price is $14.35 (sweet spot $15–$100). The average incumbent carries 20,224 reviews — the moat a new listing must climb.

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