UGREEN USB-C Male to HDMI Female Adapter – 4K@30Hz, 20cm – White | 40273

Description

The UGREEN 40273 USB-C to HDMI Adapter is a compact video adapter designed to connect a compatible USB-C device to an HDMI-equipped monitor, TV, or projector.

Supporting resolutions up to 4K UHD at 30Hz and Full HD 1080p at 60Hz, it provides digital video and audio transmission through HDMI. Its compact 20cm cable makes it suitable for MacBooks, USB-C laptops, tablets, presentations, home entertainment, and everyday workstation setups.

Key Features

• USB-C to HDMI Adapter
• USB-C Male → HDMI Female
• Supports up to 4K @ 30Hz
• Supports 1080p @ 60Hz
• Digital video & audio transmission
• Supports mirror display mode
• Supports extended display mode on compatible systems
• Plug-and-play operation
• No external power required
• Compact & portable
• 20cm integrated cable
• Color: White
• SKU: 40273

USB-C to HDMI Conversion

The UGREEN 40273 allows a compatible USB-C device to connect to an HDMI display.

Connections

• Input / Host: USB-C Male
• Output: HDMI Female
• Signal Direction: USB-C → HDMI
• Cable Length: 20cm

Example:

MacBook USB-C → UGREEN 40273 → HDMI Cable → Monitor / TV

A separate HDMI male-to-male cable is required to connect the adapter to the display.

4K Ultra HD Output

The adapter supports high-resolution video up to 4K UHD at 30Hz.

Resolution Support

• 4K / 3840 × 2160: Up to 30Hz
• 1080p / 1920 × 1080: Up to 60Hz
• 720p: Supported

This makes it suitable for presentations, movies, productivity, web browsing, and general external-display use.

Full HD 1080p at 60Hz

For users who prefer a smoother 60Hz refresh rate, the adapter supports Full HD 1080p at 60Hz.

Maximum Modes

• 4K @ 30Hz: 
• 1080p @ 60Hz: 
• 4K @ 60Hz: 
• 4K @ 120Hz: 
• 8K: 

For gaming or productivity at 4K@60Hz, a newer USB-C to HDMI adapter specifically rated for 4K@60Hz would be required.

Digital Video & Audio

HDMI carries both compatible digital video and audio through a single connection.

The UGREEN 40273 can therefore send audio from the USB-C host to compatible:

• TVs
• Monitors with built-in speakers
• Projectors with audio
• AV equipment

No separate audio cable is normally required.

Mirror & Extended Display

On compatible computers and operating systems, the adapter can be used for:

Mirror Mode: Shows the same image on the laptop and external display.

Extended Mode: Uses the external monitor as additional desktop workspace.

Extended-display functionality depends on the host device and operating system.

Plug-and-Play

The adapter is designed for straightforward use without additional driver installation on compatible systems.

Simply connect:

USB-C Device → Adapter → HDMI Cable → Display

No separate power supply is required.

Important USB-C Compatibility

The connected USB-C port must support video output, typically through DisplayPort Alt Mode or a compatible Thunderbolt connection.

A device having a USB-C connector does not automatically mean it can output video.

Compatible host technologies can include:

• USB-C with DisplayPort Alt Mode
• Thunderbolt 3
• Thunderbolt 4

The host device ultimately determines whether external HDMI video is available.

Compatibility

Suitable for compatible:

• MacBook Pro
• MacBook Air
• USB-C Windows laptops
• Dell XPS
• Surface devices with video-capable USB-C
• Chromebooks
• USB-C tablets with video output
• Other DisplayPort Alt Mode USB-C devices

Displays

• HDMI TVs
• HDMI monitors
• Projectors
• Presentation displays
• AV equipment

Specifications

• Brand: UGREEN
• SKU / Part Number: 40273
• Product Type: USB-C to HDMI Adapter
• Host Connector: USB-C Male
• Display Connector: HDMI Female
• Signal Direction: USB-C → HDMI
• Maximum Resolution: 4K UHD
• 4K @ 30Hz: Yes
• 1080p @ 60Hz: Yes
• 4K @ 60Hz: No
• Digital Video: Yes
• Digital Audio: Yes
• Mirror Mode: Yes
• Extended Mode: Yes, on compatible systems
• DisplayPort Alt Mode Required: Yes
• Thunderbolt 3/4 Compatible: Yes
• External Power Required: No
• Plug-and-Play: Yes
• Cable Length: 20cm
• Color: White

USB-C to HDMI vs HDMI to USB-C

The adapter is unidirectional and should not be used to connect an HDMI source to a USB-C monitor.

Important Gaming Note

The UGREEN 40273 is primarily suited to productivity, presentations, multimedia, and standard display connectivity.

Because its maximum 4K refresh rate is 30Hz, it is not an ideal choice for high-refresh gaming.

For smoother gaming:

• 1080p@60Hz: Suitable
• 4K@30Hz: Supported but limited to 30Hz
• 4K@60Hz: Not supported
• 4K@120Hz: Not supported

Best For

• MacBook Pro / MacBook Air
• USB-C Laptops
• Dell XPS
• Chromebooks
• USB-C Tablets
• 4K TVs
• HDMI Monitors
• Projectors
• Office Work
• Presentations
• Movies & Streaming
• Extended Desktop Setups

Why Choose the UGREEN 40273?

• Converts a compatible USB-C video output to HDMI.
• Supports up to 4K@30Hz for high-resolution displays.
• Supports smoother 1080p@60Hz output.
• Carries both digital video and audio through HDMI.
• Supports mirror and extended desktop configurations on compatible devices.
• Requires no separate external power supply.
• Compact 20cm cable makes it convenient for travel and presentations.
• The combination of USB-C connectivity, 4K@30Hz HDMI output, digital audio, and a compact 20cm White design makes the UGREEN 40273 a practical display adapter for laptops and other compatible USB-C devices.