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

The niche generates $151K/yr across 10 tracked products. 90-day search growth is -25.4%. Flapen's verdict: Skip it (36/100).

How competitive is the thunderbolt to usb adapter niche?

6 brands and 19 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in thunderbolt to usb adapter?

Top complaints mined from reviews: Size-Overall, Functionality-Overall, Compatibility-Overall. The return rate is 1.8%.

When does demand for thunderbolt to usb adapter peak?

Demand peaks in Dec; the busiest month runs 1.8× the quietest.

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

Listings span $4.64–$47.54; the average listing price is $13.96 (sweet spot $15–$100). The average incumbent carries 33,364 reviews — the moat a new listing must climb.

thunderbolt to usb adapter

Skip it

Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.

Conversion

Great10.4%

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

Returns

Great1.8%

return rate — above 5% kills the launch gate

Price range

Great$4.64–$47.54

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

Avg price

Good$13.96

avg listing price — sweet spot $15–$100

Market size

Okay$151K

$151K/yr · 104K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad83%

top-5 click share — a locked-up shelf

Growth

Bad-25.4%

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

Brand share

Bad97%

top-5 brand share — brand-locked demand

Review moat

Bad33,364.4

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, thunderbolt to usb adapter is a $151K/yr Amazon United States market (104K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Dec. Verdict: Skip it — 36/100.

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

thunderbolt to usb adapter market data

Units sold / yr: 13K–15K; avg 1,250–1,500/product
Revenue / yr: $175K–$209K; units × avg price
Conversion rate: 10.4%
Avg BSR: #16
Page quality: 0%
Prime: 100%
Sponsored: 70%
Out of stock: 0.0%
Avg brand age: 40 months
Avg seller age: 195 days

Competition & brand share

The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

83%

Top 20: 100%

Open market

Syntech65%
Apple9%
uni9%
Anker8%
Basesailor6%
Henrety3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -25.4% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 1.8×

Open Trend

Top thunderbolt to usb adapter search terms

thunderbolt to usb adapter21K/yr -40.3%4.2% conv.
usb to thunderbolt adapter15K/yr -14.1%10.1% conv.
thunderbolt to usb14K/yr -17.8%5.2% conv.
syntech usb c to usb adapter11K/yr -23.7%19.3% conv.
syntech usb c to usb adapter pack of 25K/yr +10.7%25.1% conv.
syntech5K/yr -10.0%3.1% conv.
thunderbolt 4 to usb adapter7K/yr -39.2%7.0% conv.
usb to macbook air adapter3K/yr -23.1%4.4% conv.
usb to thunderbolt4K/yr -15.3%6.5% conv.
thunderbolt to usb a3K/yr -34.5%6.7% conv.

All search terms

Top thunderbolt to usb 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Syntech USB C to USB Adapter Pack of 2 USB 3.0 Female to Thunderbolt 4/3 Adapter Compatible with MacBook Pro Air 2024 Surface iPad iPhone Galaxy Notebook XPS and More Type C Devices Space Grey

Syntech$8.304.7★190,039 rev

uni USB C to USB Hub Multiport Adapter Aluminum 4 Ports USB C Splitter for Laptop Slim Thunderbolt 3/4 Data USB Hub Compatible for MacBook Pro/Air iPad Pro Dell Chromebook | Keyboard Mouse HDD

uni$13.734.6★10,871 rev

Anker USB C Adapter (2 Pack) USB C to USB Adapter High-Speed Data Transfer for MacBook Pro 2020 iPad Pro 2020 Samsung Notebook 9 Dell XPS and More Type C Devices

Anker$10.174.8★23,805 rev

Apple USB-C to USB Adapter

Apple$18.964.7★1,346 rev

Basesailor USB C to USB Adapter 3Pack USBC Male to A Female 3.0 OTG MacBook Pro/Air Adapter Type C Thunderbolt 4 3 Converter for Apple iPhone 17 17e 16 Mac iPad Microsoft Surface Samsung Galaxy S26

Basesailor$8.114.7★17,563 rev

Newest

by launch date

Apple USB-C to USB Adapter

Apple$18.961,346 rev

1y ago

Apple Thunderbolt 3 (USB-C) to Thunderbolt2 Adapter

Apple$47.54665 rev

1y ago

Syntech USB C to USB Adapter (2 Pack) 10Gbps USB3.2 Gen 2 Fit Side by Side Type C Male to A 3.2 Female Adapter Compatible with iPhone 17e 17 Pro Max/iPad/iMac/MacBook Pro & Thunderbolt 5/4 Devices

Syntech$9.712,846 rev

2y ago

USB C to USB Adapter Type C Thunderbolt 4 OTG Converter USB C Male to USB 3.0 Female Adapter (3-Pack) for Apple MacBook Pro Mac Book iPad Samsung Galaxy S20-S23 and More (Black/Grey/Silver)

Henrety$4.644,456 rev

4y ago

Basesailor USB C to USB Adapter 3Pack USBC Male to A Female 3.0 OTG MacBook Pro/Air Adapter Type C Thunderbolt 4 3 Converter for Apple iPhone 17 17e 16 Mac iPad Microsoft Surface Samsung Galaxy S26

Basesailor$8.1117,563 rev

4y ago

What buyers say about thunderbolt to usb adapter

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

What buyers love

Advertised Vs Actual Product26%

“As advertised”

Quality-Overall20%

“Solid build quality”

Value For Money8%

“Decent price”

Compatibility-Overall8%

“Perfect for my new MacBook Air”

Ease Of Use6%

“Quick and easy”

Connectivity-Overall5%

“Have had no issues with connectivity”

Size-Overall4%

“Fit perfectly”

Socket/Port/Plug4%

“Excellent USB A to USB C Adapter”

Portability3%

“Portable and great”

Charging2%

“Perfect for charging devices”

What buyers complain about

Size-Overall14%

“These are small”

Functionality-Overall13%

“Did not work”

Compatibility-Overall12%

“My printer did not accept”

Connectivity-Overall10%

“Poor connection issues”

Quality-Overall8%

“Something wrong with quality control”

Durability6%

“Don't last”

Socket/Port/Plug5%

“The USB A end doesnt fit properly so it doesnt work”

Charging4%

“Does not charge”

Value For Money3%

“They are more expensive than others”

Ease Of Use2%

“difficult to use”

Top return reasons

Compatibility-Overall43%

Size-Overall14%

Connectivity-Overall10%

Functionality-Overall9%

Value For Money4%