Is female extension cord ends profitable to sell on Amazon United States?

The niche generates $87K/yr across 22 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is +4.5%. Flapen's verdict: Worth a look (51/100).

How competitive is the female extension cord ends niche?

13 brands and 49 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 73% of demand.

What do buyers complain about in female extension cord ends?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Assembly/Installation. The return rate is 0.9%.

When does demand for female extension cord ends peak?

Demand peaks in Nov; the busiest month runs 1.5× the quietest.

What does it cost to enter the female extension cord ends niche?

Listings span $4.14–$25.16; the average listing price is $9.39 (sweet spot $15–$100). The average incumbent carries 830 reviews — the moat a new listing must climb.

female extension cord ends

Worth a look

Shows low returns (0.9%), but a small market ($87K/yr) keeps it on the watch list.

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Conversion

Great9.4%

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

Review moat

Good830.41

avg incumbent reviews — the moat a new listing must climb

Competition

Good50%

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

Brand share

Good73%

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

Price range

Okay$4.14–$25.16

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+4.5%

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

Avg price

Okay$9.39

avg listing price — sweet spot $15–$100

Market size

Bad$87K

$87K/yr · 99K searches

According to Flapen's Amazon United States niche tracking, female extension cord ends is a $87K/yr Amazon United States market (99K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Nov. Verdict: Worth a look — 51/100.

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

female extension cord ends market data

Units sold / yr: 8K–10K; avg 250–500/product
Revenue / yr: $75K–$94K; units × avg price
Conversion rate: 9.4%
Avg BSR: #128
Page quality: 0%
Prime: 91%
Sponsored: 73%
Out of stock: 14.7%
Avg brand age: 46 months
Avg seller age: 180 days

Competition & brand share

The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

73%

Top 20: 97%

Top-5 click share

50%

Top 20: 97%

Open market

22%

TENINYU23%
Leviton22%
ThunderWay13%
STARELO8%
Yomiuwo7%
wtyixs5%

Demand & seasonality

Weekly Amazon search volume, last 85 weeks — +4.5% search growth over the last 90 days.

Peak months: Nov · busiest ÷ quietest = 1.5×

Open Trend

Top female extension cord ends search terms

female extension cord ends21K/yr +21.2%7.4% conv.
female plug end replacement 3 prong13K/yr +9.6%8.0% conv.
female plug11K/yr +7.3%4.3% conv.
extension cord female end replacement8K/yr +12.9%9.6% conv.
female electrical plug end11K/yr -10.6%9.6% conv.
female plug end5K/yr +30.0%7.3% conv.
extension cord ends female 3 outlet replacement 3 way4K/yr +29.8%0.6% conv.
3 prong female plug5K/yr -18.7%2.7% conv.
extension cord female end5K/yr -9.2%8.0% conv.
female cord end4K/yr -4.7%9.6% conv.

All search terms

Top female extension cord ends 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

TENINYU 2-Pole 3 Wire Grounding Plug Female Extension Cord Straight Blade Plug Replacement Electrical Connector End 15A 125V Black 3Pack (Female)

TENINYU$6.904.1★520 rev

Leviton 15 Amp 125 Volt Cord Outlet Rubber Grounding 515CR Black

Leviton$6.624.7★1,094 rev

ThunderWay Extension Cord Ends Female Kit Replacement Connector 3 Prong 15Amp 125Volt NEMA 5-15R UL Listed Yellow 5 Pack

ThunderWay$9.914.6★27 rev

ThunderWay Electrical Replacement Plug & Connector Set Extension Cord Ends Male and Female 15A 125V Straight Blade Plug Grounding Type NEMA 5-15P&5-15R 3-Prong Straight Blade-5 Set UL Listed

ThunderWay$19.374.6★780 rev

3Pack Straight Blade Plug 2 Pole 3 Wire 125V 15A Grounding Plug Female Extension Cord Ends Replacement Electrical Plugs Connectors End Black

wtyixs$6.924.3★164 rev

Newest

by launch date

Straight Blade Plug 15 Amp 125 Volt Grounding 3-Wire Female Extension Cord Replacement Electrical Plugs End Black 3-Pack (Female Plug)

SalPhines$6.051,001 rev

6mo ago

Tmyjfjingxi 2 Sets Extension Cord Repair Ends Male and Female 3 Prong Replacement Plug End Connector 125V 15A Straight Blade Electrical Plug YY034

Tmyjfjingxi$9.4921 rev

6mo ago

ThunderWay Extension Cord Ends Female Kit Replacement Connector 3 Prong 15Amp 125Volt NEMA 5-15R UL Listed Black 5 Pack

ThunderWay$10.6711 rev

7mo ago

ThunderWay Extension Cord Ends Female Kit Replacement Connector 3 Prong 15Amp 125Volt NEMA 5-15R UL Listed Yellow 5 Pack

ThunderWay$9.9127 rev

7mo ago

Suplevel 20 Amp 125 Volt Electrical Replacement Female Plugs 10PCS NEMA 5-20R Extension Cord Female Connector Ends 2 Pole 3 Wire Grounding Industrial Grade Straight Blade Heavy Duty ETL Listed

Suplevel$25.16112 rev

1y ago

What buyers say about female extension cord ends

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

What buyers love

Quality-Overall19%

“Excellent product”

Assembly/Installation13%

“Easy install”

Advertised Vs Actual Product10%

“Exactly as described”

Socket/Port/Plug10%

“Great plug at a great price”

Value For Money9%

“Great deal”

Efficiency6%

“Light works fine”

Ease Of Use6%

“Easy to use”

Design-Overall4%

“Nice design,”

Size-Overall3%

“Everything fits together properly”

Connectivity-Overall3%

“Excellent Plug connection”

What buyers complain about

Quality-Overall26%

“Low Quality”

Size-Overall8%

“It does not fit”

Assembly/Installation8%

“Hard to install”

Connectivity-Overall6%

“hard to connect”

Strength5%

“Not as robust as it looks”

Instructions/User Manual/Troubleshooting5%

“instructions are confusing”

Ease Of Use4%

“Not easy to use”

Socket/Port/Plug4%

“socket doesn't hold tightly”

Design-Overall3%

“Horrible design”

Durability3%

“Broke”

Top return reasons

Size-Overall20%

Compatibility-Overall16%

Add-Ons/Attachments8%

Socket/Port/Plug8%

Functionality-Overall8%

Advertised Vs Actual Product6%

Quality-Overall6%

Defective Material/Parts5%

Value For Money4%

Assembly/Installation3%

Common questions

Is female extension cord ends profitable to sell on Amazon United States?: The niche generates $87K/yr across 22 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is +4.5%. Flapen's verdict: Worth a look (51/100).
How competitive is the female extension cord ends niche?: 13 brands and 49 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 73% of demand.
What do buyers complain about in female extension cord ends?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Assembly/Installation. The return rate is 0.9%.
When does demand for female extension cord ends peak?: Demand peaks in Nov; the busiest month runs 1.5× the quietest.
What does it cost to enter the female extension cord ends niche?: Listings span $4.14–$25.16; the average listing price is $9.39 (sweet spot $15–$100). The average incumbent carries 830 reviews — the moat a new listing must climb.