StarTech.com
StarTech USB to Dual HDMI Adapter
Best dual-monitor solution for professionals needing extra screen space on the go.
Expand your laptop's display capabilities with the StarTech USB to Dual HDMI Adapter. This versatile adapter allows you to connect two independent HDMI displays, one supporting 4K resolution at 30Hz and the other 1080p, to a single USB-A or USB-C port. It's bus-powered, eliminating the need for an external power supply, and features an integrated 4.3-inch cable for convenience. The adapter is compatible with Windows, macOS, and ChromeOS, offering a flexible solution for increasing productivity by enabling extended or mirrored display modes.
$67.99
Owner Satisfaction
4.1
/ 5
Category Rank
2262
/ 2621
#2262 in Audio & Video Cable Adapters & Couplers
Price vs Category Average
-11%
Below average
Maximum Resolution
38402160
/ x
Who it's for
- Multitaskers needing extra screen real estate for productivity
- IT professionals managing mixed Windows and macOS environments
- Remote workers needing a portable dual-monitor workstation
Who should skip it
- Gamers and video editors requiring high-performance graphics
- Corporate employees restricted from installing unauthorized software
- Users with older, lower-spec computers struggling with resource demands
Performance breakdown
Display Versatility
Driving dual monitors from one port significantly boosts multitasking potential.
Portability
Compact form factor and bus-powered design make it perfect for travel.
Compatibility
Broad support across Windows, macOS, and ChromeOS ensures seamless integration.
Resolution Performance
Splitting bandwidth limits one output to 1080p, which may disappoint power users.
Setup Simplicity
Automatic driver installation on most systems gets you working almost instantly.
Build Reliability
StarTech's three-year warranty reflects confidence in their hardware durability.
Key Specs
Maximum Resolution
3840 x 2160
Connector
USB-C to HDMI
Country of Origin
China
Dimensions
99 x 51 x 15 mm
Cable Length
4.3 inches
Warranty
36 months
USB Standard
USB 3.2 Gen 1
Video Output
HDMI
Know before you buy
Yes, the adapter is designed to work with both USB-A and USB-C ports, making it compatible with a wide range of laptops regardless of the port type.
Yes, this adapter is specifically capable of enabling extended display modes on M-series MacBooks, which often struggle with multi-monitor setups.
No, the adapter is bus-powered, meaning it draws all the necessary power directly from your laptop's USB port. You do not need an external power supply.
No, the adapter supports one 4K display at 30Hz and one 1080p display. It cannot output 4K resolution to both monitors simultaneously.
On Windows and ChromeOS, the adapter features automatic driver installation, so it should be plug-and-play. macOS users may need to follow specific setup instructions provided by StarTech.
Yes, it features a compact design measuring roughly 99 x 51 x 15 mm with an integrated 4.3-inch cable, making it easy to slip into a laptop bag or travel case.
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