USB-C to Dual 4K 60Hz HDMI Adapter Connected to MacBook Air and Two 4K Displays
Workspace
Wonder
Thunderbolt Dual HDMI Connections Solution
USB-C to Dual 4K 60Hz HDMI Adapter Connected to MacBook Air and Two 4K Displays
Optimal Thunderbolt/USB4 to HDMI Video Performance Banner
Workspace Wonder
Thunderbolt Dual 4K HDMI 2.1 Adapter
Connect Two 4K 120Hz (or 8K 60Hz + 4K 60Hz) HDMI Displays as Supported by Your Computer
for Mac® and Windows®
Two 4K HDMI Monitors
Two HDMI Displays from a Single Thunderbolt Port
Do your ideas and workflow need room to grow beyond a single screen?  Sonnet Thunderbolt Dual 4K HDMI 2.1 Adapter makes it possible for you to work more efficiently with your laptop, compact desktop or all-in-one computer, enabling you to connect two 4K 120Hz (or 8K 60Hz + 4K 60Hz) monitors as supported by your Windows computer, or two 4K 60Hz to Apple® M series Pro, Max, or Ultra Macs.
Thunderbolt Dual HDMI 2.1 Adapter HDMI Ports
MacBook Pro and Windows Notebook
Double Display Expansion Solution for M Series Pro/Max/Ultra Macs, and Intel® Mac and Windows Computers
Two 4K HDMI Monitors
Expand Your Desktop – Connect Two 4K 60Hz HDMI® Displays
Thunderbolt Logo
Thunderbolt™ Certified – Connect to Your Computer with a Thunderbolt or USB4 Port
Supports 4K Plus 8K Displays with Windows Computer Icon
Supports 8K + 4K Displays with Windows Computers
This Sonnet adapter can also support one 8K 60Hz display plus one 4K 60Hz display — ideal for when you need to connect your computer to the largest displays possible! Note that 8K monitor support under Windows depends on the graphics capability of your Windows computer.
Man Working Behind Two 4K Monitors
Productivity Partner

Expanded Workspace. Enhanced Workflow.

Work more efficiently and expand your application desktop space across multiple screens. Whether you need to edit video or code like a pro, open multiple applications on their own screens, or crunch spreadsheets in detail, Thunderbolt Dual 4K HDMI 2.1 Adapter makes it possible. Connecting the adapter is plug-and-play easy – your computer powers the Sonnet adapter, so there’s no need to connect an additional power supply, and with native macOS® and Window support there’s no need to install separate driver software.
MacBook Pro Connected to External Display and TV
Go Bigger

Enjoy the Web and Videos at a Distance

Even when you’re not working hard, your laptop’s screen can constrain your view. Go much bigger —  Thunderbolt Dual 4K HDMI 2.1 Adapter enables you to connect your computer to your big screen TV or large monitor to share videos and other content.

Key Features

Two 4K Monitors Icon

Connects Two 4K 120Hz Displays to a Single Thunderbolt Port

Enables connection of two 4K 120Hz (Windows) or two 4K 60Hz (Mac) HDMI displays to a single Thunderbolt port on your computer.

Expands Your Onscreen Work and Play Area Icon

Expands Your Onscreen Work and Play Area

Open multiple applications on different displays, view your work on larger screens, watch videos, or extend your gaming space.

Expands Your Onscreen Work and Play Area Icon

8K 60Hz or Dual 4K 120Hz Display Support

Higher resolution and faster refresh rate supported with newer Windows  computers.

Supports Other Resolutions Icon

Supports Other Resolutions

Also supports 1080p and other lower resolution displays @ 120Hz.

Automatic Setup, Bus Powered Icon

Automatic Setup. Bus Powered.

Sonnet adapter uses operating system drivers, draws power from Thunderbolt port.

Supports Audio Icon

Supports HDMI Audio and HDCP

Passes audio through the cable connecting your display and plays protected streaming video.

Won't Drain System Resources Icon

Supercharged Video Refresh

Use your computer’s GPU for the best performance for all applications.

Apple M Series CPU Icon

Apple M Series Pro/Max/Ultra Compatible

Compatible with your M series Pro, Max or Ultra Mac computer.

Intel Mac and Windows Compatible Icon

Intel and AMD Compatible

Compatible with Intel-based Windows and Mac Thunderbolt computers and AMD USB4 laptops.

Free Lifetime Tech Support Icon

Free Lifetime Tech Support

Founded in 1986 in Orange County, Southern California — the vibrant hub of technology and engineering south of Silicon Valley — Sonnet has been at the forefront of innovation. Over the years, we've developed numerous award-winning products that enhance performance and connectivity for Mac, Windows, and other industry-standard computers. Many of our team members have been with us for over two decades, providing us with extensive expertise about our current and past offerings. If you ever need technical support for any of our products, don’t hesitate to reach out; we’re here to assist you.

Four 4K Displays Connected to MacBook Pro
Expand Your View

Connect Four HDMI Displays to Mac Studio or MacBook Pro M2/M3 Max

Connect four HDMI displays to your Mac Studio® with two Sonnet Thunderbolt Dual 4K HDMI 2.1 Adapters. Connect four HDMI displays to your MacBook Pro® M2 Max or M3 Max: the first two to a Thunderbolt Dual 4K HDMI 2.1 Adapter, the third to a USB-C to HDMI adapter (like Sonnet USB-C DisplayLink Dual 4K 60Hz HDMI Adapter), and the fourth to the built-in HDMI port of your MacBook Pro.
Conference Room Display
Not Just for 4K Displays

Supports Full HD (1080p) Displays and Audio Out

While Thunderbolt Dual 4K HDMI 2.1 Adapter supports two 4K @ 60Hz monitors, you can also use it to connect monitors with lower resolutions, like full HD 1080p (1920x1080) @ 60Hz — this makes it great for use for different home and work applications. Because audio support is built into the Sonnet adapter, you don’t have to plug in a separate cable to hear sound from connected displays.
Supports Audio Out IconThunderbolt Dual HDMI 2.1 Adapter Connected to a MacBook Pro and a HP Laptop
M1 Pro, M1 Max, and Intel Mac/Windows Computers
Optimal HDMI Video Performance Over Thunderbolt or USB4

Compatible with M series Pro/Max/Ultra and Intel Macs, and Intel Mac and Windows Computers with Thunderbolt or USB4

(see Tech Specs for full compatibility info)

Thunderbolt Dual 4K HDMI 2.1 Adapter is ideal for most computers with Thunderbolt or USB4 ports. Thunderbolt’s 40Gbps interface lets you run Ultra HD 4K resolution at 120Hz on both displays at full performance. Need dual 4K monitor support with your basic M series Mac; or Intel or AMD PC without Thunderbolt or USB4? Check out USB 3 DisplayLink Dual 4K 60Hz HDMI Adapter and USB-C DisplayLink Dual 4K 60Hz HDMI Adapter (with PD Passthrough).

See the chart below to determine the best Sonnet adapters and display configurations for your computer.
Display Adapter Recommendation
Comuter Icon
Two HDMI Displays Icon
Computer
Recommendation for Two 4K External Displays
  • Computers that support two external displays over Thunderbolt 3, 4, 5 or USB 4 (Includes M series Pro/Max/Ultra Macs, and Thunderbolt 4 or 5 computers)
    • Basic M series Macs
    • PCs with USB 3 ports
    • Thunderbolt 3 or USB4 Ultrabooks with single display support
      Sonnet HDMI Adapters
      Computer
      Two 4K 60Hz HDMI Displays
      Four 4K 60Hz HDMI Displays
      Comuter Icon
      Two HDMI Displays Icon
      Four Displays Icon
      M1 Mac
      DisplayLink Dual HDMI Adapter for M1 Macs
      DisplayLink Dual HDMI Adapter for M1 Macs
      DisplayLink Dual HDMI Adapter for M1 Macs
      M1 Pro or M1 Max Mac
      Mac with four Thunderbolt 3 ports (except Mac mini)
      Thunderbolt Dual HDMI Adapter
      Thunderbolt Dual HDMI Adapter
      Thunderbolt Dual HDMI Adapter
      Mac with two Thunderbolt 3 ports
      Mac mini with four Thunderbolt 3 ports
      Windows computer with Thunderbolt 3* or 4 ports
      Thunderbolt Dual HDMI Adapter
      Thunderbolt Dual HDMI Adapter
      DisplayLink Dual HDMI Adapter for M1 Macs
      MacBook or WIndows computer with only USB ports
      DisplayLink Dual HDMI Adapter for M1 Macs
      DisplayLink Dual HDMI Adapter for M1 Macs
      DisplayLink Dual HDMI Adapter for M1 Macs
      Display Adapters Recommendation
      HDMI Display Icon
      Computer
      • Computers that support two external displays over Thunderbolt 3, 4, or 5 or USB 4 (Inlcudes M series Pro/Max/Ultra Macs and Thunderbolt 4 or 5 computers)
      Recommendation for Two 4K External Displays
      Computer
      • Basic M series Macs
      • PCs with USB 3 ports
      • Thunderbolt or USB4 Ultrabooks with single display support
      Recommendation for Two 4K External Displays
        Sonnet HDMI Adapters
        Computer
        Two 4K 60Hz HDMI Displays
        Four 4K 60Hz HDMI Displays
        Comuter Icon
        Two HDMI Displays Icon
        Four Displays Icon
        M1 Mac
        DisplayLink Dual HDMI Adapter for M1 Macs
        DisplayLink Dual HDMI Adapter for M1 Macs
        DisplayLink Dual HDMI Adapter for M1 Macs
        M1 Pro or M1 Max Mac
        Mac with four Thunderbolt 3 ports (except Mac mini)
        Thunderbolt Dual HDMI Adapter
        Thunderbolt Dual HDMI Adapter
        Thunderbolt Dual HDMI Adapter
        Mac with two Thunderbolt 3 ports
        Mac mini with four Thunderbolt 3 ports
        Windows computer with Thunderbolt 3* or 4 ports
        Thunderbolt Dual HDMI Adapter
        Thunderbolt Dual HDMI Adapter
        DisplayLink Dual HDMI Adapter for M1 Macs
        MacBook or WIndows computer with only USB ports
        DisplayLink Dual HDMI Adapter for M1 Macs
        DisplayLink Dual HDMI Adapter for M1 Macs
        DisplayLink Dual HDMI Adapter for M1 Macs

        Thunderbolt Dual HDMI 2.1 Adapter