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

The niche generates $72K/yr across 30 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -7.3%. Flapen's verdict: Skip it (42/100).

How competitive is the usb c card niche?

14 brands and 66 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 74% of demand.

What do buyers complain about in usb c card?

Top complaints mined from reviews: Compatibility-Overall, Socket/Port/Plug, Functionality-Overall. The return rate is 6.1% — above our launch gate.

When does demand for usb c card peak?

Demand peaks in Jan–Dec; the busiest month runs 1.6× the quietest.

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

Listings span $15.68–$246.24; the average listing price is $39.88 (sweet spot $15–$100). The average incumbent carries 416 reviews — the moat a new listing must climb.

usb c card

Skip it

A small market ($72K/yr) — this niche doesn't clear our bar today.

Avg price

Incredible$39.88

avg listing price — sweet spot $15–$100

Review moat

Great415.53

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Competition

Good51%

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

Brand share

Good74%

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

Price range

Okay$15.68–$246.24

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

Conversion

Okay2.1%

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

Growth

Bad-7.3%

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

Returns

Bad6.1%

return rate — above 5% kills the launch gate

Market size

Bad$72K

$72K/yr · 85K searches

Signals High Returns

According to Flapen's Amazon United States niche tracking, usb c card is a $72K/yr Amazon United States market (85K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 42/100.

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

usb c card market data

Units sold / yr: 3K–3K; avg 100–250/product
Revenue / yr: $100K–$120K; units × avg price
Conversion rate: 2.1%
Avg BSR: #36
Page quality: 0%
Prime: 100%
Sponsored: 90%
Out of stock: 0.0%
Avg brand age: 37 months
Avg seller age: 187 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

51%

Top 20: 91%

Open market

19%

YEELIYA23%
StarTech.com20%
LDLrui13%
FebSmart12%
SINEFINE6%
LinksTek6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -7.3% search growth over the last 90 days.

Peak months: Jan, Dec · busiest ÷ quietest = 1.6×

Open Trend

Top usb c card search terms

usb c pcie card21K/yr -4.8%2.6% conv.
usb c card12K/yr -7.4%1.8% conv.
pcie usb c expansion card8K/yr +10.0%2.7% conv.
pcie usb c9K/yr -20.0%2.6% conv.
usb c pcie6K/yr +6.8%3.0% conv.
pcie to usb c5K/yr -9.0%1.4% conv.
usbc pcie card5K/yr -19.0%2.8% conv.
usb c card for pc3K/yr +23.1%3.2% conv.
usb c expansion card4K/yr -9.7%3.1% conv.
usb c pci card3K/yr +19.8%2.6% conv.

All search terms

Top usb c 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

Top sellers

by 90-day click share

10Gbps PCIE USB C 3.2 Gen 2 Card 2-Port PCle to USB C Expansion Card PCI Express 3.0 x4 Adapter for Desktop PC SSD Enclosures Workstations File Backup Data only

LDLrui$28.864.5★68 rev

USB 3.0 PCIE Card 5-Port (3X USB C 2X Type A) PCI Express Expansion Card

YEELIYA$22.504.2★471 rev

StarTech 5-Port USB 10Gbps PCIe Card (PS4C3IA3-USB-C-CARD)

StarTech.com$70.144.4★131 rev

4X 5Gbps USB-C Ports PCI Express USB 3.0 Expansion Card for Windows 11 10 8.x 7 Vista XP Desktop PCs Built in Self-Powered Technology No Need Additional Power Supply (FS-U304C-Pro)

FebSmart$27.334.3★2,705 rev

PCIE-U304C 4-Ports PCIE USB 3.0 (3.1 GEN1) 5Gbps Expansion Card for Desktop PCs 4X 5Gbps Max USB-C Ports Built in Smart Power Distribution Technology No Need Extra Power Supply

LinksTek$26.964.3★229 rev

Newest

by launch date

GLOTREND U3044C 4-Port PCIe USB Expansion Card 4 USB-C Ports (USB 3.2 Gen 1) Compatible with Windows Linux (Not for Mac OS)

GLOTRENDS$25.9712 rev

4mo ago

ineo USB 3.2 Gen 2x2 20 Gbps Type-C Back Panel Expansion Card with PCI Bracket - Internal Type E Header to USB-C Port Expansion [CA09]

ineo$16.278 rev

6mo ago

4 Ports USB PCIe Card (2X Type A - 2X USB C) PCI Express to USB Expansion Card PC Internal USB3 Hub Converter for Desktop PC Adapter Support Windows 11/10/8/7/XP and Linux

YEELIYA$19.8614 rev

8mo ago

10Gbps PCIE USB C 3.2 Gen 2 Card 2-Port PCle to USB C Expansion Card PCI Express 3.0 x4 Adapter for Desktop PC SSD Enclosures Workstations File Backup Data only

LDLrui$28.8668 rev

1y ago

USB PCIe Card PCI Express to 6 Ports USB Expansion Card (2X Type A - 2X USB C) with External 20pin Type-E Header (to Type-c Front Panel)/ 19pin Adapter Low Profile Bracket with Windows and Linux

YEELIYA$24.42152 rev

1y ago

What buyers say about usb c card

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

What buyers love

Socket/Port/Plug20%

“Great for adding ports”

Assembly/Installation18%

“Installation was standard”

Compatibility-Overall9%

“Compatibility was no issue on my system”

Data Transfer Speed7%

“the transfer speeds are solid for everything I have tested so far”

Value For Money7%

“Worth price”

Advertised Vs Actual Product6%

“as advertised”

Quality-Overall5%

“This is a great quality cable”

Connectivity-Overall4%

“It works, devices connect,”

Computation Performance4%

“It is super fast”

Strength3%

“The car seems solidly built”

What buyers complain about

Compatibility-Overall13%

“Not compatible with window 11”

Socket/Port/Plug12%

“it appeared that some of the USB ports were non-functional”

Functionality-Overall10%

“Doesnt work well”

Size-Overall8%

“dont really fit the case”

Advertised Vs Actual Product7%

“Sadly not listed in the product information”

Connectivity-Overall7%

“They flash power, never connect, never transfer any data”

Data Transfer Speed7%

“the transfer speed is slow”

Quality-Overall6%

“and had significant worse performance”

Product Condition4%

“Received a clearly used unit”

Instructions/User Manual/Troubleshooting3%

“The card does NOT come with any documentation”

Top return reasons

Compatibility-Overall33%

Functionality-Overall14%

Socket/Port/Plug11%

Size-Overall9%

Advertised Vs Actual Product8%

Connectivity-Overall5%

Defective Material/Parts4%

Data Transfer Speed3%

Length3%

Assembly/Installation2%

Common questions

Is usb c card profitable to sell on Amazon United States?: The niche generates $72K/yr across 30 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -7.3%. Flapen's verdict: Skip it (42/100).
How competitive is the usb c card niche?: 14 brands and 66 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in usb c card?: Top complaints mined from reviews: Compatibility-Overall, Socket/Port/Plug, Functionality-Overall. The return rate is 6.1% — above our launch gate.
When does demand for usb c card peak?: Demand peaks in Jan–Dec; the busiest month runs 1.6× the quietest.
What does it cost to enter the usb c card niche?: Listings span $15.68–$246.24; the average listing price is $39.88 (sweet spot $15–$100). The average incumbent carries 416 reviews — the moat a new listing must climb.