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34

usb c to usb 3.0 adapter

Skip it

Prices mostly outside the sweet spot ($4.29–$10.17) — this niche doesn't clear our bar today.

Market size 11Growth 18Conversion 93Competition 23Returns 90Price range 0Avg price 21Brand share 38Review moat 12Quality gap 21

Conversion

Great11.5%

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

Returns

Great1.3%

return rate — above 5% kills the launch gate

Brand share

Okay82%

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

Competition

Bad73%

top-5 click share — a locked-up shelf

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Avg price

Bad$7.63

avg listing price — sweet spot $15–$100

Growth

Bad-14.4%

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

Review moat

Bad27,762.79

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$44K

$44K/yr · 51K searches

Price range

Bad$4.29–$10.17

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

According to Flapen's Amazon United States niche tracking, usb c to usb 3.0 adapter is a $44K/yr Amazon United States market (51K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 34/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

usb c to usb 3.0 adapter market data

Units sold / yr
6K–8K
avg 250–500/product
Revenue / yr
$46K–$61K
units × avg price
Conversion rate
11.5%
Avg BSR
#26
Page quality
0%
Prime
100%
Sponsored
93%
Out of stock
0.5%
Avg brand age
33 months
Avg seller age
206 days

Competition & brand share

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

21

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

73%

Top 20: 100%

Open market

13%

  • UGREEN48%
  • Anker12%
  • JSAUX9%
  • Syntech8%
  • Basesailor5%
  • XAOSUN5%
  • Open — no brand owns it (5 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -14.4% search growth over the last 90 days.
2K1KPrime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top usb c to usb 3.0 adapter search terms

  • usb c to usb 3.0 adapter20K/yr
  • usb 3.0 to usb c adapter10K/yr
  • usb 3 to usb c adapter11K/yr
  • usb c to usb 3 adapter3K/yr
  • usb c female to usb 3.0 male adapter2K/yr
  • usb3 to usb c adapter2K/yr
  • usb c to usb 3.1 adapter1K/yr
All search terms

Top usb c to usb 3.0 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.

0%10%$4K20%$9K30%$13K40%$18K1001K10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

What buyers say about usb c to usb 3.0 adapter

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

What buyers love

Advertised Vs Actual Product23%

“Exactly as shown”

Quality-Overall18%

“Excellent product”

Value For Money10%

“Fair price”

Compatibility-Overall9%

“These adapters work well”

Ease Of Use6%

“VERY handy”

Charging5%

“Charge great”

Size-Overall5%

“A well snug fit”

Socket/Port/Plug4%

“Excellent USB A to USB C Adapter”

Connectivity-Overall4%

“Good connection”

Portability3%

“easy to carry”

What buyers complain about

Functionality-Overall12%

“Nonfunctional”

Size-Overall11%

“Too big”

Compatibility-Overall10%

“Beware - doesnt work for everything”

Connectivity-Overall9%

“slow connection”

Charging8%

“would not charge phone”

Durability7%

“Break easily”

Quality-Overall7%

“are low quality”

Socket/Port/Plug4%

“Port is rather shallow”

Advertised Vs Actual Product3%

“Description is wrong”

Data Transfer Speed2%

“Not working, can't transfer data”

Top return reasons

Compatibility-Overall40%
Size-Overall13%
Connectivity-Overall10%
Functionality-Overall10%
Charging5%
Value For Money4%
Advertised Vs Actual Product4%
Socket/Port/Plug3%
Defective Material/Parts3%
Data Transfer Speed2%

Common questions

Is usb c to usb 3.0 adapter profitable to sell on Amazon United States?
The niche generates $44K/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -14.4%. Flapen's verdict: Skip it (34/100).
How competitive is the usb c to usb 3.0 adapter niche?
11 brands and 21 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in usb c to usb 3.0 adapter?
Top complaints mined from reviews: Functionality-Overall, Size-Overall, Compatibility-Overall. The return rate is 1.3%.
When does demand for usb c to usb 3.0 adapter peak?
Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the usb c to usb 3.0 adapter niche?
Listings span $4.29–$10.17; the average listing price is $7.63 (sweet spot $15–$100). The average incumbent carries 27,763 reviews — the moat a new listing must climb.