usb to dual hdmi adapter
Skip itHigh returns (7.1%) — this niche doesn't clear our bar today.
Avg price
Great$74.51avg listing price — sweet spot $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Competition
Good44%top-5 click share — leaders hold, buyers still browse
Review moat
Good1,059.58avg incumbent reviews — the moat a new listing must climb
Market size
Good$382K$382K/yr · 124K searches
Conversion
Good4.1%search→purchase rate — share of searches ending in a sale
Brand share
Bad91%top-5 brand share — brand-locked demand
Growth
Bad-10.4%90-day search growth — must beat 0% to launch
Price range
Bad$11.84–$451.76cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Bad7.1%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, usb to dual hdmi adapter is a $382K/yr Amazon United States market (124K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 47/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
usb to dual hdmi adapter market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- $373K–$447K
- units × avg price
- Conversion rate
- 4.1%
- Avg BSR
- #438
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 90%
- Out of stock
- 5.1%
- Avg brand age
- 44 months
- Avg seller age
- 171 days
Competition & brand share
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.Brands
11 falling
Sellers
105
Top-5 brand share
91%
Top 20: 100%
Top-5 click share
44%
Top 20: 86%
Open market
7%
- StarTech.com76%
- vilcome8%
- MOKiN3%
- THANDBLE2%
- SWITCHFLUX2%
- Acer2%
- Open — no brand owns it (5 brands, 7%)
Demand
Weekly Amazon search volume, last 45 weeks — -10.4% search growth over the last 90 days.Top usb to dual hdmi adapter search terms
- startech38K/yr
- startech usb hub30K/yr
- usb to dual hdmi adapter13K/yr
- startech.com7K/yr
- star tech5K/yr
- usb 3.0 to dual hdmi adapter5K/yr
- startech adapter5K/yr
- hdmi splitter usb3K/yr
- usb to hdmi splitter4K/yr
- startech usb c hub3K/yr
Top usb to dual hdmi 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
StarTech USB-A 3.0 to Dual HDMI Adapter 4K 30Hz + 1080p 60Hz Windows only
StarTech.com$38.184.5★9,596 rev
StarTech 4-Port USB-A Hub 5Gbps Power Adapter Included (ST4300USB3)
StarTech.com$40.124.6★311 rev
StarTech Crash Cart Adapter File Transfer USB VGA KVM TAA (NOTECONS02)
StarTech.com$451.763.7★203 rev
StarTech 6-in-1 USB-C Hub 4K HDMI HDR10 3X USB-A 5Gbps GbE 100W
StarTech.com$37.044.2★202 rev
vilcome USB to HDMI Adapter USB 3.0 to Dual HDMI Adapter with USB 3.0 Port Audio Video Graphics Converter Cable for Laptop Monitor Desktop TV Compatible with Mac OS Windows
vilcome$24.383.8★100 rev
Newest
by launch date
Acer 4-in-1 USB C Hub Type C to Dual HDMI Adapter 4K@60Hz HDMI Splitter for Dual Monitors with 100W PD Port USB 3.0 Dual Monitor Adapter for USB C Devices with DP Alt Mode (0.65FT)
Acer$27.61464 rev
THANDBLE USB to Dual HDMI Adapter 1080P 60Hz USB A 3.0 to HDMI Adapter for Laptop PC Desktop Compatible with Mac OS Windows 7/8/10/11 - Requires Driver Installation
THANDBLE$26.8938 rev
vilcome USB to HDMI Adapter USB 3.0 to Dual HDMI Adapter with USB 3.0 Port Audio Video Graphics Converter Cable for Laptop Monitor Desktop TV Compatible with Mac OS Windows
vilcome$24.38100 rev
vilcome USB to HDMI Adapter USB 3.0 to Dual HDMI Adapter Audio Video Graphics Converter Cable for Laptop Monitor Desktop TV Compatible with Mac OS Windows
vilcome$26.232,611 rev
![SWITCHFLUX USB to HDMI Adapter [Gold-Plated & Aluminum Shell] USB 3.0 to Dual HDMI for Dual Monitors USB A to HDMI Splitter Support Windows macOS - Driver Installation Required](https://m.media-amazon.com/images/I/41n3qnGnIUL.jpg)
SWITCHFLUX USB to HDMI Adapter [Gold-Plated & Aluminum Shell] USB 3.0 to Dual HDMI for Dual Monitors USB A to HDMI Splitter Support Windows macOS - Driver Installation Required
SWITCHFLUX$27.7133 rev
Trending
90-day click momentumvilcome USB to HDMI Adapter USB 3.0 to Dual HDMI Adapter Audio Video Graphics Converter Cable for Laptop Monitor Desktop TV Compatible with Mac OS Windows
vilcome$26.234.4★
MOKiN USB 3.0 to Dual HDMI Adapter for Dual Monitors USB C to HDMI Adapter for Mac Windows 4K Dual HDMI Adapter Compatible with M1/M2 Mac Windows ChromeOS Android
MOKiN$21.394.6★
Acer 4-in-1 USB C Hub Type C to Dual HDMI Adapter 4K@60Hz HDMI Splitter for Dual Monitors with 100W PD Port USB 3.0 Dual Monitor Adapter for USB C Devices with DP Alt Mode (0.65FT)
Acer$27.614.1★
StarTech Crash Cart Adapter Server Management USB VGA TAA (NOTECONS01)
StarTech.com$363.814.1★
SWITCHFLUX USB to HDMI Adapter [Gold-Plated & Aluminum Shell] USB 3.0 to Dual HDMI for Dual Monitors USB A to HDMI Splitter Support Windows macOS - Driver Installation Required
SWITCHFLUX$27.713.4★
What buyers say about usb to dual hdmi adapter
What buyers praise and complain about, mined from review topics.What buyers love
“-Sturdy build quality”
“As advertised”
“The compatible did surprise me”
“Easy to hook up”
“good for the money”
“It just makes long work sessions easier on the eyes”
“I also like having the extra USB port and pass-through charging, which keeps things convenient without needing multiple adapters”
“Good connectivity”
“This device fixed that”
“Adjusted resolution and completed set up with my 2 monitors and 1 Laptop”
What buyers complain about
“Did not work well”
“Failed within a month”
“it doesn't connect well”
“didn't work for me on my mac”
“apps is also tricky”
“One of the hdmi ports was bad”
“Poor performance”
“Does not work as described”
“DO NOT GO ONTO THE SITE ON THE INSTRUCTIONS”
“For the price 3 months is a joke”
Top return reasons
Common questions
- Is usb to dual hdmi adapter profitable to sell on Amazon United States?
- The niche generates $382K/yr across 31 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -10.4%. Flapen's verdict: Skip it (47/100).
- How competitive is the usb to dual hdmi adapter niche?
- 11 brands and 105 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 91% of demand.
- What do buyers complain about in usb to dual hdmi adapter?
- Top complaints mined from reviews: Functionality-Overall, Durability, Connectivity-Overall. The return rate is 7.1% — above our launch gate.
- What does it cost to enter the usb to dual hdmi adapter niche?
- Listings span $11.84–$451.76; the average listing price is $74.51 (sweet spot $15–$100). The average incumbent carries 1,060 reviews — the moat a new listing must climb.