Is thunderbolt to usb c profitable to sell on Amazon United States?

The niche generates $290K/yr across 6 tracked products. 90-day search growth is -16.7%. Flapen's verdict: Skip it (34/100).

How competitive is the thunderbolt to usb c niche?

4 brands and 46 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in thunderbolt to usb c?

Top complaints mined from reviews: Functionality-Overall, Compatibility-Overall, Durability. The return rate is 11.6% — above our launch gate.

When does demand for thunderbolt to usb c peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the thunderbolt to usb c niche?

Listings span $12.81–$47.54; the average listing price is $28.19 (sweet spot $15–$100). The average incumbent carries 2,271 reviews — the moat a new listing must climb.

thunderbolt to usb c

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Avg price

Incredible$28.19

avg listing price — sweet spot $15–$100

Price range

Great$12.81–$47.54

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Market size

Good$290K

$290K/yr · 267K searches

Conversion

Okay3.9%

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

Review moat

Okay2,271.33

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-16.7%

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

Competition

Bad96%

top-5 click share — a locked-up shelf

Returns

Bad11.6%

return rate — above 5% kills the launch gate

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Returns

According to Flapen's Amazon United States niche tracking, thunderbolt to usb c is a $290K/yr Amazon United States market (267K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.

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

thunderbolt to usb c market data

Units sold / yr: 10K–13K; avg 1,000–1,250/product
Revenue / yr: $282K–$352K; units × avg price
Conversion rate: 3.9%
Avg BSR: #654
Page quality: 0%
Prime: 83%
Sponsored: 33%
Out of stock: 0.0%
Avg brand age: 40 months
Avg seller age: 180 days

Competition & brand share

The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

96%

Top 20: 100%

Open market

Apple66%
Answin22%
vienon8%
StarTech.com4%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top thunderbolt to usb c search terms

thunderbolt 2 to usb c48K/yr -21.1%2.6% conv.
thunderbolt to usb c40K/yr -26.9%2.6% conv.
thunderbolt 3 to thunderbolt 2 adapter20K/yr -9.3%6.3% conv.
thunderbolt 2 to thunderbolt 3 adapter19K/yr -2.0%4.2% conv.
thunderbolt to usb c adapter15K/yr -8.6%2.7% conv.
thunderbolt 2 to thunderbolt 314K/yr -15.8%3.8% conv.
thunderbolt 2 adapter15K/yr -15.4%1.2% conv.
usb c to thunderbolt adapter15K/yr -40.6%1.5% conv.
apple thunderbolt 3 usb-c to thunderbolt 2 adapter10K/yr -8.8%8.4% conv.
usb c to thunderbolt9K/yr -0.2%0.9% conv.

All search terms

Top thunderbolt to usb c 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 6 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Apple Thunderbolt 3 (USB-C) to Thunderbolt2 Adapter

Apple$47.544.6★665 rev

Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter

Apple$45.534.6★9,488 rev

Answin USB C to Mini Displayport (4K@60Hz) Thunderbolt 3 to Mini DisplayPort Adapter for iPhone 15/16/17 Series M2-M4 MacBook MacBook Air/Pro 2018-2025 Galaxy S21-S25 Steam Deack and Rog Ally

Answin$15.584.1★1,351 rev

vienon 6FT USB C to Mini DisplayPort Cable 4K@60Hz Type C to Mini-DisplayPort Cable Compatible with iPhone 15 MacBook Pro/Air/iMac/Surface etc (No Bi-Directional Not for Thunderbolt 2)

vienon$12.814.3★422 rev

Answin USB C to Mini DisplayPort 6Ft 4K@60Hz Thunderbolt 3 to Mini Displayport Cable Compatible for iPhone 15/16/17 Series M2-M4 MacBook Pro Surface Book 2 Galaxy S20-S25 Steam Deck and Rog Ally

Answin$15.954.4★847 rev

Newest

by launch date

Apple Thunderbolt 3 (USB-C) to Thunderbolt2 Adapter

Apple$47.54665 rev

1y ago

vienon 6FT USB C to Mini DisplayPort Cable 4K@60Hz Type C to Mini-DisplayPort Cable Compatible with iPhone 15 MacBook Pro/Air/iMac/Surface etc (No Bi-Directional Not for Thunderbolt 2)

vienon$12.81422 rev

4y ago

Answin USB C to Mini DisplayPort 6Ft 4K@60Hz Thunderbolt 3 to Mini Displayport Cable Compatible for iPhone 15/16/17 Series M2-M4 MacBook Pro Surface Book 2 Galaxy S20-S25 Steam Deck and Rog Ally

Answin$15.95847 rev

6y ago

Answin USB C to Mini Displayport (4K@60Hz) Thunderbolt 3 to Mini DisplayPort Adapter for iPhone 15/16/17 Series M2-M4 MacBook MacBook Air/Pro 2018-2025 Galaxy S21-S25 Steam Deack and Rog Ally

Answin$15.581,351 rev

7y ago

Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter

Apple$45.539,488 rev

7y ago

What buyers say about thunderbolt to usb c

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

What buyers love

Advertised Vs Actual Product23%

“it works as it should”

Connectivity-Overall20%

“The connection has been reliable”

Quality-Overall13%

“it was available and great quality”

Compatibility-Overall13%

“It is fully compatible”

Display Resolution9%

“I'm glad to be able to use the big screen again”

Ease Of Use3%

“Makes work so much simpler”

Durability3%

“Seems to be durable”

Assembly/Installation2%

“No setup problems, no loose fit, and no surprises”

What buyers complain about

Functionality-Overall24%

“now, I did and the adaptor is not functional”

Compatibility-Overall22%

“Doesnt pair with apple”

Durability11%

“failure after 1 1/2 months”

Value For Money9%

“A little expensive”

Advertised Vs Actual Product7%

“Deceptive sales pitch”

Add-Ons/Attachments3%

“Doesn't plug all the way in”

Quality-Overall3%

“cheap”

Color3%

“No purple/ green tint”

Socket/Port/Plug3%

“The USB part of the StarTech device no longer works”

Top return reasons

Compatibility-Overall54%

Connectivity-Overall17%

Functionality-Overall15%

Size-Overall3%

Defective Material/Parts2%

Advertised Vs Actual Product2%

Value For Money2%

Socket/Port/Plug1%

Data Transfer Speed1%

Product Condition1%

Common questions

Is thunderbolt to usb c profitable to sell on Amazon United States?: The niche generates $290K/yr across 6 tracked products. 90-day search growth is -16.7%. Flapen's verdict: Skip it (34/100).
How competitive is the thunderbolt to usb c niche?: 4 brands and 46 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in thunderbolt to usb c?: Top complaints mined from reviews: Functionality-Overall, Compatibility-Overall, Durability. The return rate is 11.6% — above our launch gate.
When does demand for thunderbolt to usb c peak?: Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the thunderbolt to usb c niche?: Listings span $12.81–$47.54; the average listing price is $28.19 (sweet spot $15–$100). The average incumbent carries 2,271 reviews — the moat a new listing must climb.