Atlona Omega 4K/UHD meeting hub with USB-C and HDMI inputs and HDMI output - AT-OME-MH21

Product Overview

The Atlona AT-OME-MH21 is a compact 2×1 AV switcher from the Omega Series, designed for huddle rooms and small meeting spaces that require reliable USB-C and HDMI multi-input switching with integrated USB hub functionality. Supporting 4K/UHD @ 60 Hz with 4:4:4 chroma sampling and HDCP 2.2, this USB-C HDMI switcher for conference rooms delivers hands-free operation, automatic display control, and selectable 4K to 1080p downscaling in a low-profile enclosure. The integrated USB 3.0 hub connects video conferencing peripherals such as cameras and speakerphones to two host PCs, making it well-suited for Zoom, Microsoft Teams, and Cisco Webex deployments in small meeting room AV integration applications.

Product Description

The Atlona AT-OME-MH21 is part of the Omega Series of integration products for modern AV communications and collaboration. It provides a two-input switching solution with one USB-C input and one HDMI input, routing the selected source to an HDMI output at resolutions up to 4K/UHD @ 60 Hz with 4:4:4 chroma sampling and HDR support including HDR10, HLG, and Dolby Vision @ 60 Hz. HDCP 2.2 compliance ensures protected content is handled correctly across the signal chain.

Automatic input selection uses hot plug detect (HPD) and active video detection to switch sources as soon as a device is connected, requiring no user intervention. The USB-C input supports AV output via Alternate Mode, providing single-cable connectivity for modern laptops and tablets — though it does not support device charging. An integrated USB 3.0 hub includes one Type-B port for a host PC plus two Type-A ports for peripherals such as cameras, speakerphones, or touch displays, with a second host path available through the USB-C input port.

Selectable 4K to 1080p downscaling can convert 4K/UHD sources at 60, 30, or 24 Hz to 1080p output, making the unit compatible with HD-only displays without requiring a separate scaler. Audio de-embedding routes two-channel PCM audio to a balanced analog output for integration with amplifiers or DSP systems. Automatic display control — via IP, RS-232, IR, or CEC — powers the display on when a source connects and off when it disconnects, enabling fully hands-free room operation.

The AT-OME-MH21 features an integrated web server for GUI-based configuration, supports TCP/IP and RS-232 control for third-party control system compatibility, and is manageable via Atlona Velocity Device Manager for centralized device monitoring and firmware updates across a facility. Its low-profile 1.02-inch (26 mm) enclosure installs discreetly below tables or in furniture. Note: The AT-OME-MH21 has limited availability; the AT-OME-MH21-CP is the current replacement product with added USB-C device charging up to 60 watts.

Key Features

• 2×1 USB-C and HDMI Switching — One USB-C input and one HDMI input switch to a single HDMI output, covering both legacy and current-generation laptop connectivity in a single unit.
• 4K/UHD @ 60 Hz with 4:4:4 Chroma Sampling — Supports full 4K/60 4:4:4 video at HDMI data rates up to 18 Gbps, plus HDR10, HLG, and Dolby Vision @ 60 Hz.
• HDCP 2.2 Compliant — Adheres to the latest content protection specification for passing protected streams between authenticated source and display devices.
• Integrated USB 3.0 Hub — One USB Type-B host port, one USB-C host path, and two USB Type-A peripheral ports support video conferencing camera and speakerphone connectivity alongside two host PCs.
• Selectable 4K to 1080p Downscaling — Converts 4K/UHD input to 1080p @ 60, 30, or 24 Hz for compatibility with HD displays; downscaling can be bypassed for full 4K/60 4:4:4 pass-through.
• Automatic Display Control — Controls display power via IP, RS-232, IR, or CEC based on source connect/disconnect events, enabling hands-free room operation without a separate control system.
• Automatic Input Selection — HPD and active video detection reliably switches to the active source, including sources that maintain a constant 5V HPD state without delivering active video.
• Audio De-embedding — Extracts two-channel PCM audio from HDMI or USB-C inputs and routes it to a balanced analog output for direct connection to external amplifiers or DSP equipment.
• Integrated Web Server for Configuration — GUI-based setup covers input switching, display control, HDCP/EDID management, network settings, and more from a browser on any device.
• Low-Profile Enclosure — At 1.02 inches (26 mm) high, the unit installs discreetly under tables or in furniture, with included surface mounting hardware.

Typical Applications

• Huddle rooms and small meeting spaces requiring compact, hands-free BYOD AV switching
• Video conferencing rooms running Zoom, Microsoft Teams, Cisco Webex, or GoToMeeting with USB camera and speakerphone integration
• Collaboration spaces where two host PCs share a common display, camera, and audio peripherals
• Conference rooms with 1080p displays requiring 4K downscaling from newer source devices
• Corporate deployments using Atlona Velocity Device Manager for centralized AV system management
• Education and training rooms benefiting from automatic display control and zero-UI presenter operation

Technical Specifications

Frequently Asked Questions

Q: Does the AT-OME-MH21 support USB-C device charging?

No. The AT-OME-MH21 does not support device charging over USB-C. For installations requiring USB-C charging up to 60 watts, the AT-OME-MH21-CP is the recommended replacement product.

Q: Which video conferencing platforms are compatible with the AT-OME-MH21?

The integrated USB hub provides connectivity for soft codec platforms including Zoom, Microsoft Teams, Cisco Webex, and GoToMeeting. A camera and speakerphone or soundbar can be connected to the two USB Type-A peripheral ports and switched between two host PCs.

Q: Can the AT-OME-MH21 downscale 4K sources for 1080p displays?

Yes. Selectable 4K to 1080p downscaling converts 4K/UHD input at 60, 30, or 24 Hz to 1080p output. Downscaling can also be bypassed to allow full 4K/60 4:4:4 pass-through when the connected display supports it.

Q: How does automatic display control work on the AT-OME-MH21?

The unit monitors source connection status and automatically sends display power-on or power-off commands via IP, RS-232, IR, or CEC. An adjustable lamp cooldown mode prevents premature projector restart after shutdown. Display drivers are sourced from the Velocity system driver database.

Q: What is the maximum cable length for the USB-C input?

The USB-C input supports cable lengths up to 2 meters (6.6 feet). A 2-meter USB-C male-to-male cable (USB 3.2 Gen 1) is included with the unit.

Q: Does the AT-OME-MH21 support HDR content?

Yes. The unit passes through HDR10, Hybrid Log-Gamma (HLG), and Dolby Vision @ 60 Hz from compatible HDMI and USB-C sources to HDR-capable displays. HDR pass-through requires both the source and display to support the respective HDR format.

Q: Is the AT-OME-MH21 still in production?

The AT-OME-MH21 has limited availability and has been superseded by the AT-OME-MH21-CP, which adds USB-C device charging up to 60 watts while retaining all other features. Contact Creation Networks for current availability at creationnetworks.net.