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35

black extension cord 3ft

Skip it

Prices mostly outside the sweet spot ($4.66–$11.21) — this niche doesn't clear our bar today.

Market size 19Growth 24Conversion 99Competition 27Returns 80Price range 0Avg price 20Brand share 33Review moat 22Quality gap 13

Conversion

Incredible18.6%

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

Returns

Great1.8%

return rate — above 5% kills the launch gate

Brand share

Okay85%

top-5 brand share — brands hold most of the demand

Competition

Okay69%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-1.7%

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

Review moat

Bad9,086.65

avg incumbent reviews — the moat a new listing must climb

Avg price

Bad$7.33

avg listing price — sweet spot $15–$100

Market size

Bad$78K

$78K/yr · 57K searches

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

Price range

Bad$4.66–$11.21

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

According to Flapen's Amazon United States niche tracking, black extension cord 3ft is a $78K/yr Amazon United States market (57K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 35/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

black extension cord 3ft market data

Units sold / yr
10K–13K
avg 500–750/product
Revenue / yr
$73K–$92K
units × avg price
Conversion rate
18.6%
Avg BSR
#62
Page quality
0%
Prime
100%
Sponsored
94%
Out of stock
0.0%
Avg brand age
47 months
Avg seller age
201 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 falling

Sellers

17

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

11%

  • Seeklyze51%
  • Skrizcable14%
  • LitStar11%
  • Belllights5%
  • LBSC4%
  • Amazon Basics3%
  • Open — no brand owns it (5 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.7% search growth over the last 90 days.
2K1KHoliday '24Spike '25Holiday '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Top black extension cord 3ft search terms

  • short black extension cord12K/yr
  • black extension cord 3ft15K/yr
  • small black extension cord6K/yr
  • 3 foot black extension cord4K/yr
  • 3ft black extension cord4K/yr
  • 3 ft black extension cord4K/yr
  • 3 ft extension cord black4K/yr
  • 3 black extension cord2K/yr
  • extension cord black 3ft3K/yr
  • short black extension cord 3ft3K/yr
All search terms

Top black extension cord 3ft 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%$8K20%$16K30%$23K40%$31K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

What buyers say about black extension cord 3ft

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

What buyers love

Quality-Overall27%

“Excellent quality”

Advertised Vs Actual Product14%

“As advertised”

Size-Overall9%

“great size”

Socket/Port/Plug7%

“The flat plug is great”

Value For Money6%

“fair price”

Strength4%

“GOOD AND STRONG”

Add-Ons/Attachments4%

“Good quality extension cords”

Ease Of Use4%

“easy to use”

Charging3%

“Its a great charger”

Weight Heavy3%

“Great heavy duty product”

What buyers complain about

Size-Overall12%

“Doesn't fit”

Socket/Port/Plug9%

“One of the sockets doesnt work”

Quality-Overall8%

“Very poor quality control, doesnt work”

Functionality-Overall8%

“Didn't Work For Me”

Add-Ons/Attachments7%

“These extension cords are awful”

Durability6%

“Blew up”

Advertised Vs Actual Product4%

“Advertised wrong length”

Connectivity-Overall3%

“Bad connection”

Charging3%

“the buzzing from charging USB devices gets annoying when Im trying to fall asleep”

Flatness2%

“The flat part is the wall plug only so this did not work for my needs”

Top return reasons

Size-Overall32%
Add-Ons/Attachments13%
Socket/Port/Plug9%
Compatibility-Overall9%
Advertised Vs Actual Product8%
Functionality-Overall6%
Value For Money6%
Defective Material/Parts2%
Connectivity-Overall2%
Color1%

Common questions

Is black extension cord 3ft profitable to sell on Amazon United States?
The niche generates $78K/yr across 17 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -1.7%. Flapen's verdict: Skip it (35/100).
How competitive is the black extension cord 3ft niche?
11 brands and 17 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 85% of demand.
What do buyers complain about in black extension cord 3ft?
Top complaints mined from reviews: Size-Overall, Socket/Port/Plug, Quality-Overall. The return rate is 1.8%.
When does demand for black extension cord 3ft peak?
Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the black extension cord 3ft niche?
Listings span $4.66–$11.21; the average listing price is $7.33 (sweet spot $15–$100). The average incumbent carries 9,087 reviews — the moat a new listing must climb.