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USB-C to Dual 4K 60Hz HDMI Adapter

For Release: Nov. 9, 2023

For more information, please contact:

Martin Muggee
Marketing Communications Manager


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  IRVINE, Calif. — November 9, 2023

Sonnet Announces Dual 4K 60Hz HDMI® Display Adapter With USB Power Delivery (PD) Passthrough Capability

Bus-Powered USB-C® Adapter Harnesses DisplayLink® Technology to Drive Two Displays, Supports Connection of Computers’ USB-C Power Cable for Laptop Charging and Operation, All Through a Single Computer Port

What’s New:
Sonnet Technologies today announced the USB-C® to Dual 4K 60Hz HDMI® Adapter, a new addition to the company’s line of dual-display adapters for Apple® M series and Intel® Mac® computers and Windows® and Chromebook™ computers. The adapter incorporates a captive cable with a USB-C connector that connects to a compatible computer’s USB or Thunderbolt™ port for bus-powered operation.

What It Does:
The Sonnet USB-C to Dual 4K 60Hz HDMI Adapter enables users to connect two 4K @ 60Hz HDMI displays to a single port on their computers. This adapter is ideal for use with productivity software such as Microsoft® Office, enabling users to work more efficiently by expanding their computer’s workspace — whether by opening multiple applications on their own screens, editing code or viewing spreadsheets in detail on a large display, or mirroring their computer’s display on a larger monitor. They can also connect a computer to a big-screen TV for browsing the web and watching videos on YouTube and other content at a distance. The Sonnet adapter also includes a USB-C power passthrough port for connecting a laptop computer’s charging cable, and passing up to 90 watts of power to the computer for operation and charging.

Why It’s Important:
Apple M1/M2 series MacBook Air®, M1/M2 13-inch and M3 14-inch MacBook Pro® computers with two Thunderbolt/USB4® ports deliver great performance but limit the number of peripherals — displays included — that can be connected. Ultrathin Windows and Chromebook laptop computers with two Thunderbolt 4 or USB4 ports may be similarly restricted. With one port often used for charging the computer, only one port remains open for plugging in another device. More importantly, these computers natively support only a single external display. Sonnet’s USB-C to Dual 4K 60Hz HDMI Adapter overcomes the computers’ limitations to enable users to connect a computer’s USB-C charging cable and two 4K 60Hz displays at once through a single port on their computer, thereby freeing the other port for connecting an additional peripheral device.

How It’s Distinctive:
Many dual-display adapters are either incompatible with M series Mac computers, only support lower-resolution displays, or support just one display at a 60Hz refresh rate (the other limited to 30Hz). The Sonnet USB-C to Dual 4K 60Hz HDMI Adapter supports two 4K — or lower-resolution — displays, operates off power from the host computer’s USB or Thunderbolt port, and is fully compatible with M series and Intel Mac computers, and PCs running Windows® 11 or 10 or ChromeOS™ build R51 or later. Also, most dual-display adapters lack a USB-C power passthrough port.

When You Can Get It:
The Sonnet USB-C to Dual 4K 60Hz HDMI Adapter (part number USBC-DHDMI) is available now from Sonnet and soon from channel partners worldwide at the suggested retail price of $99.99.

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About Sonnet Technologies
Sonnet Technologies, Inc. is a leading provider of Thunderbolt™ technology products and network, storage, and other interface cards for pro users in the audio, video, and broadcast industries. Sonnet’s array of Thunderbolt products includes a broad variety of docks, pro media readers, and network interface and display adapters, plus PCIe® card expansion systems that enable the use of pro audio I/O and DSP cards, pro video capture and transcoding cards, GPU cards, and other high-performance PCIe cards with computers with Thunderbolt ports. Due to Sonnet’s Thunderbolt Technology expertise, it has become a leading designer/manufacturer of ODM boards which enable the integration of Thunderbolt ports into third-party products. For 35 years Sonnet has pioneered and brought to market numerous innovative and award-winning products that enhance the performance and connectivity of Mac®, Windows®, and Linux® computers. More information is available at

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