Skip to content
47

usb card

Skip it

Soft demand (-20.9% this quarter) — this niche doesn't clear our bar today.

Market size 37Growth 15Conversion 39Competition 65Returns 24Price range 36Avg price 95Brand share 51Review moat 76Quality gap 76

Avg price

Incredible$36.10

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Great483.77

avg incumbent reviews — the moat a new listing must climb

Competition

Good46%

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

Brand share

Good74%

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

Conversion

Okay3.1%

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

Market size

Okay$182K

$182K/yr · 163K searches

Price range

Okay$12.32–$246.24

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

Returns

Bad5.2%

return rate — above 5% kills the launch gate

Growth

Bad-20.9%

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

According to Flapen's Amazon United States niche tracking, usb card is a $182K/yr Amazon United States market (163K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 47/100.

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

usb card market data

Units sold / yr
5K–6K
avg 100–250/product
Revenue / yr
$181K–$217K
units × avg price
Conversion rate
3.1%
Avg BSR
#32
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
0.0%
Avg brand age
63 months
Avg seller age
189 days

Competition & brand share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

78

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

46%

Top 20: 85%

Open market

16%

  • YEELIYA23%
  • ELUTENG22%
  • GLOTRENDS10%
  • FebSmart10%
  • SINEFINE10%
  • StarTech.com10%
  • Open — no brand owns it (6 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -20.9% search growth over the last 90 days.
5K3KHoliday '24Prime Day '25Black Friday '25Holiday '25SepDecMarJunAugNovMarMay

Peak months: Jan, Dec · busiest ÷ quietest = 1.7×

Top usb card search terms

  • pcie usb expansion card42K/yr
  • usb pcie card21K/yr
  • usb expansion card11K/yr
  • pcie usb10K/yr
  • internal usb port cards11K/yr
  • usb pcie6K/yr
  • pcie usb card7K/yr
  • usb 3.2 pcie card7K/yr
  • pcie usb 3.05K/yr
  • pci usb card7K/yr
All search terms

Top usb card 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%4%$7K8%$15K12%$22K16%$29K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about usb card

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

What buyers love

Socket/Port/Plug18%

“Great for adding ports”

Assembly/Installation16%

“Easy install”

Quality-Overall9%

“Build quality is solid too”

Compatibility-Overall9%

“Works and compatible with just about all os on earth”

Advertised Vs Actual Product8%

“as advertised”

Data Transfer Speed6%

“Transfer speeds are fast”

Value For Money6%

“Good price”

Connectivity-Overall5%

“Great connectivity”

Computation Performance4%

“Performance highlights:”

Size-Overall3%

“The card fits”

What buyers complain about

Socket/Port/Plug15%

“ports do not work”

Functionality-Overall11%

“Doesnt work well”

Compatibility-Overall10%

“The included driver CD is incompatible”

Size-Overall8%

“Smaller than it looks”

Connectivity-Overall7%

“- usb devices randomly disconnect”

Durability6%

“First unit died after two weeks”

Quality-Overall6%

“Typical low quality, re-sold crap”

Data Transfer Speed5%

“Transfer speed slow”

Advertised Vs Actual Product4%

“Not 3.2 like advertised”

Constant Reboot Or Restart3%

“Instead it automatically restarted”

Top return reasons

Compatibility-Overall25%
Functionality-Overall16%
Socket/Port/Plug14%
Size-Overall11%
Advertised Vs Actual Product8%
Connectivity-Overall5%
Defective Material/Parts5%
Length3%
Data Transfer Speed3%
Assembly/Installation2%

Common questions

Is usb card profitable to sell on Amazon United States?
The niche generates $182K/yr across 35 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -20.9%. Flapen's verdict: Skip it (47/100).
How competitive is the usb card niche?
12 brands and 78 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in usb card?
Top complaints mined from reviews: Socket/Port/Plug, Functionality-Overall, Compatibility-Overall. The return rate is 5.2% — above our launch gate.
When does demand for usb card peak?
Demand peaks in Jan–Dec; the busiest month runs 1.7× the quietest.
What does it cost to enter the usb card niche?
Listings span $12.32–$246.24; the average listing price is $36.10 (sweet spot $15–$100). The average incumbent carries 484 reviews — the moat a new listing must climb.