Is nema 10-30 to 14-50 adapter profitable to sell on Amazon United States?

The niche generates $47K/yr across 18 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +19.0%. Flapen's verdict: Skip it (44/100).

How competitive is the nema 10-30 to 14-50 adapter niche?

14 brands and 17 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 76% of demand.

What do buyers complain about in nema 10-30 to 14-50 adapter?

Top complaints mined from reviews: Charging, Durability, Certifications. The return rate is 13.0% — above our launch gate.

When does demand for nema 10-30 to 14-50 adapter peak?

Demand peaks in Aug; the busiest month runs 1.6× the quietest.

What does it cost to enter the nema 10-30 to 14-50 adapter niche?

Listings span $13.37–$77.40; the average listing price is $31.47 (sweet spot $15–$100). The average incumbent carries 227 reviews — the moat a new listing must climb.

nema 10-30 to 14-50 adapter

Skip it

High returns (13.0%) — this niche doesn't clear our bar today.

Avg price

Incredible$31.47

avg listing price — sweet spot $15–$100

Price range

Great$13.37–$77.40

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

Review moat

Great227.06

avg incumbent reviews — the moat a new listing must climb

Conversion

Great8.3%

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

Growth

Okay+19.0%

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

Brand share

Okay76%

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

Competition

Okay62%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$47K

$47K/yr · 18K searches

Returns

Bad13.0%

return rate — above 5% kills the launch gate

Signals High Returns

According to Flapen's Amazon United States niche tracking, nema 10-30 to 14-50 adapter is a $47K/yr Amazon United States market (18K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Aug. Verdict: Skip it — 44/100.

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

nema 10-30 to 14-50 adapter market data

Units sold / yr: 1K–1K; avg 0–100/product
Revenue / yr: $31K–$39K; units × avg price
Conversion rate: 8.3%
Avg BSR: #383
Page quality: 0%
Prime: 100%
Sponsored: 94%
Out of stock: 16.6%
Avg brand age: 33 months
Avg seller age: 257 days

Competition & brand share

The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 falling

Sellers

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

62%

Top 20: 100%

Open market

24%

CircleCord33%
Tellegloww14%
M1A29%
air2yun7%
MECMO7%
Suplevel7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +19.0% search growth over the last 90 days.

Peak months: Aug · busiest ÷ quietest = 1.6×

Open Trend

Top nema 10-30 to 14-50 adapter search terms

nema 10-30 to 14-50 adapter10K/yr +4.8%5.4% conv.
10-30 to 14-50 adapter4K/yr +49.4%6.1% conv.
10-30p to 14-50r4K/yr +35.6%5.7% conv.

All search terms

Top nema 10-30 to 14-50 adapter 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 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

CircleCord NEMA 10-30P to 14-50R EV Charger Adapter Cord Compatible with Tesla Model 3/S/X/Y 30 Amp Dryer to 50 Amp EV for Level 2 Charging ETL Listed (Not for RV or Dryer)

CircleCord$20.944.6★1,853 rev

M1A2 ETL Listed L-Shape NEMA 10-30P to 14-50R EV Charger Adapter 8 AWG Cord Compatible with Tesla Model 3/S/X/Y STW 30 Amp Dryer to 50 Amp EV for Level 2 Charging 10-30p to 14-50r with Grip Handle

M1A2$19.654.5★440 rev

50Amp to 30Amp EV Charger Adapter Cord Nema 10-30P Male to 14-50R Female Power Connector for Level 2 Charging (not for RVs) ETL Listed (NEMA 10-30P T0 14-50R)

air2yun$20.034.9★44 rev

MECMO NEMA 10-30P to 14-50R Temporary EV Adapter 24Amp Charger Plug for Tesla Model 3 Y S X 3-Prong Old Dryer Socket to EV Charging Use Only Non-grounding Plug Not for Any RV/Dryer

MECMO$19.394.6★187 rev

ELEGRP NEMA 10-30P to 14-50R Adapter Cord for Level 2 EV Charging 1 Foot 30 Amp Dryer Plug to 50 Amp Receptacle Converter 10 Gauge STW Heavy Duty Extension Cable Compatible with Tesla Model 3/Y/S/X

ELEGRP$18.525.0★6 rev

Newest

by launch date

Suplevel NEMA 14-50P to 10-30R Dryer Adapter Cord 50 Amp 4 Prong RV Generator Male to 30 Amp 3 Prong Old Dryer Female with Handle STW 10AWG/3C ETL Listed(NOT for 14-30R Dryer Outlet)

Suplevel$22.8074 rev

8mo ago

ELEGRP NEMA 10-30P to 14-50R Adapter Cord for Level 2 EV Charging 1 Foot 30 Amp Dryer Plug to 50 Amp Receptacle Converter 10 Gauge STW Heavy Duty Extension Cable Compatible with Tesla Model 3/Y/S/X

ELEGRP$18.526 rev

10mo ago

50Amp to 30Amp EV Charger Adapter Cord Nema 10-30P Male to 14-50R Female Power Connector for Level 2 Charging (not for RVs) ETL Listed (NEMA 10-30P T0 14-50R)

air2yun$20.0344 rev

1y ago

Toptozl 25ft EV Charger Adapter Cord Compatible with NEMA 10-30P to 14-50R 30 Amp 3 Prong Dryer Male to 50 Amp 4 Prong EV Female for Level 2 or Telsa Charging ETL Listed

Toptozl$74.8730 rev

1y ago

NEMA 10-30P to 14-50R EV Charger Adapter Cord 30A Dryer Plug to 50A EV Charging Heavy-Duty STW 10 Gauge 13 Inches for Level 2 EV Charging

Sekelo$16.0818 rev

1y ago

What buyers say about nema 10-30 to 14-50 adapter

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

What buyers love

Quality-Overall22%

“The build quality is excellent”

Charging12%

“Overall worked perfectly for a GM Ultima EV lv2 charger”

Advertised Vs Actual Product9%

“Works as advertised”

Compatibility-Overall8%

“works perfectly for my car”

Value For Money6%

“Worth my money”

Ease Of Use6%

“Convenient for my needs”

Strength4%

“It seems to be sturdy and well built”

Efficiency4%

“Works great”

Weight Heavy4%

“Heavy duty”

Durability4%

“Durable and reliable”

What buyers complain about

Charging11%

“if you can't dial back your charging rate. in-vehicle or in-app., don't buy this adapter”

Durability10%

“Not very durable”

Certifications10%

“I can see how an electrical engineer would have difficulty recommending this item based upon the lack of certifications/listings”

Heating8%

“Doesnt get hot”

Quality-Overall7%

“Lack of quality control and more importantly, no verifiable ETL listing”

Flammable5%

“will burn house down”

Product Condition3%

“I believe the item was previously used”

Socket/Port/Plug3%

“one of the plugs had a nick in it”

Advertised Vs Actual Product3%

“The Amazon product description reads”

Size-Overall2%

“Since the cable is short”

Top return reasons

Compatibility-Overall31%

Size-Overall28%

Charging9%

Functionality-Overall8%

Connectivity-Overall5%

Socket/Port/Plug4%

Defective Material/Parts3%

Advertised Vs Actual Product2%

Heating2%

Value For Money1%

Common questions

Is nema 10-30 to 14-50 adapter profitable to sell on Amazon United States?: The niche generates $47K/yr across 18 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +19.0%. Flapen's verdict: Skip it (44/100).
How competitive is the nema 10-30 to 14-50 adapter niche?: 14 brands and 17 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 76% of demand.
What do buyers complain about in nema 10-30 to 14-50 adapter?: Top complaints mined from reviews: Charging, Durability, Certifications. The return rate is 13.0% — above our launch gate.
When does demand for nema 10-30 to 14-50 adapter peak?: Demand peaks in Aug; the busiest month runs 1.6× the quietest.
What does it cost to enter the nema 10-30 to 14-50 adapter niche?: Listings span $13.37–$77.40; the average listing price is $31.47 (sweet spot $15–$100). The average incumbent carries 227 reviews — the moat a new listing must climb.

nema 10-30 to 14-50 adapter

nema 10-30 to 14-50 adapter market data

Competition & brand share

Demand & seasonality

Top nema 10-30 to 14-50 adapter search terms

Top nema 10-30 to 14-50 adapter products on Amazon

Top sellers

Newest

Trending

What buyers say about nema 10-30 to 14-50 adapter

What buyers love

What buyers complain about

Top return reasons

Common questions

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