Sonnet Thunderbolt Dual 4K HDMI 2.1 Adapter

• Connects Two 4K Displays to a Single Thunderbolt Port
• Expands Your Onscreen Work and Play Area
• 8K @ 60Hz and Dual 4K @ 120Hz Display Support
• Supports Other Resolutions
• Automatic Setup. Bus Powered 
• Supports HDMI Audio
• No Impact on Your Computer’s Performance
• Apple® M Series Pro/Max/Ultra Compatible
• Intel® Mac & Windows Compatible

Sonnet Thunderbolt Dual 4K HDMI 2.1 Adapter

Connect Two 4K 120Hz (or 8K 60Hz + 4K 60Hz) HDMI Displays as Supported by Your Computer

Do your ideas and workflow need room to grow beyond a single screen? Sonnet Thunderbolt™ Dual 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 (3840 x 2160) @ 60Hz displays (Mac) or up to two 4K (3840 x 2160) @ 120Hz displays (Windows) to a single Thunderbolt port on your computer.

Supports Up to 8K Resolution with Windows Computers

This Sonnet adapter can also support one 8K (7680 x 4320) @ 60Hz display plus one 4K @ 60Hz display at the same time — ideal for when you need to connect your computer to the largest displays possible! Note that 8K monitor support under Windows depends on the number of monitors, maximum resolution, and refresh rates your computer supports.

Productivity Partner – Expands Your Workspace. Enhances Your 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, crunch spreadsheets in detail, or mirror your notebook’s display on a larger monitor, Sonnet Thunderbolt Dual 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 Windows® support there’s no need to install separate driver software.

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 — Sonnet Thunderbolt Dual HDMI 2.1 Adapter enables you to connect your computer to your big screen TV or large monitor to browse the web and watch videos on YouTube and other content at a distance.

SPECS

• Connects Two 4K Displays to a Single Thunderbolt Port – Enables connection of two 4K @ 60Hz (Mac) or up to 4K @ 120Hz (Windows) HDMI displays to a single Thunderbolt port on your computer.
• Expands Your Onscreen Work and Play Area – Open multiple applications on different displays, view your work on larger screens, browse the web, and watch videos.
• 8K @ 60Hz and Dual 4K @ 120Hz Display Support – Higher resolution and faster refresh rate supported with some Windows computers.
• Supports Other Resolutions – Also supports 1080P and other lower resolution displays @ 60Hz.
• Automatic Setup. Bus Powered – Sonnet adapter uses operating system drivers and draws its power from the Thunderbolt port.
• Supports HDMI Audio – Passes audio through the cables connecting your displays.
• No Impact on Your Computer’s Performance – Unlike many USB video adapters, this Sonnet Thunderbolt adapter won't drain system resources.
• Apple® M Series Pro/Max/Ultra Compatible – Compatible with your M series Pro, Max, or Ultra Mac computer.
• Intel® Mac & Windows Compatible – Compatible with Intel-based Mac and Windows Thunderbolt computers.
• Package Contents – Thunderbolt Dual HDMI 2.1 Adapter and documentation.
• Warranty – 2-year product warranty.
• Customer Support – Free lifetime customer technical support.
• The Sonnet Advantage – Designed and engineered in the USA. Since 1986.

Mac Compatibility

• Mac (M series Pro/Max/Ultra and M4)
• Mac Studio additionally supports four or six (M2 Ultra) displays with two or three Sonnet Thunderbolt Dual 4K HDMI 2.1 Adapters, respectively
• Mac (Intel) with Thunderbolt 3 ports
• Mac (Intel) with four Thunderbolt 3 ports (except Mac mini) additionally supports four 4K monitors with two Sonnet adapters
• Basic M1/M2/M3 series Macs are not compatible (see Sonnet's DisplayLink adapters for dual monitor support)
• macOS 10.12.6+
• macOS Sequoia compatible

Windows Compatibility

• Windows computer with Thunderbolt 5, 4, or 3 ports; or USB4 port(1)
• Windows 11 and 10

Monitor Compatibility

• EDID Version 1.4

Application Compatibility

• Suitable for all applications

Warranty

• 2-year

Form Factor

• Display adapter

Bus Interface

• 40Gbps Thunderbolt

External Connectors

• Two HDMI
• Thunderbolt captive cable

Standards

• HDMI 2.1
• HDCP 2.2

Maximum Resolutions

• macOS: Two 4K (3840 x 2160 @ 60Hz)(2)
• Windows: Two 4K (3840 x 2160 @ 120Hz); or one 8K (7680 x 4320 @ 60Hz)

Dimensions (WxDxH)

• 2.4 x 4.4 x 0.6 in. (60 x 113 x 15 mm)

Compliance

• RoHS 3 (Directive 2015/863)
• IEC62368-1 and IEC62368-2 Safety

Package Contents

• Thunderbolt Dual 4K HDMI 2.1 Adapter (with captive 7.9-inch [20cm] Thunderbolt cable)
• Documentation

Technical Notes

1. Not compatible with USB-C only ports. All Windows Thunderbolt 4 and 5 computers support two 4K monitors. Thunderbolt 3 and USB4 computers support two displays. Check the specifications for your computer for exceptions.
2. macOS currently supports HDMI displays only up to 4K 60Hz via Thunderbolt docks and adapters. Apple may add support for higher resolutions and/or frame rates at a later date.