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Atlona® Three-Input Switcher for HDMI and USB-C
Atlona® Three-Input Switcher for HDMI and USB-C 0
Atlona® Three-Input Switcher for HDMI and USB-C 1

Atlona® Three-Input Switcher for HDMI and USB-C

Model #: AT-OME-ST31A
At a Glance
The Atlona AT-OME-ST31A is a compact yet versatile 3×1 switcher and HDBaseT transmitter with HDMI and USB-C inputs, and mirrored HDMI and HDBaseT outputs. The OME-ST31A is part of the Omega™ Series of integration products for modern AV communications and collaboration.
Price Starting At
$1,160.00Save $NaN

Get to know this product.

  • 3×1 HDBaseTTM switcher with HDMI® and USB-C inputs
  • Mirrored HDBaseT and HDMI outputs
  • Designed for remote powering over HDBaseT
  • Local powering available with optional AT-PS-245-D4 power supply
  • 4K/UHD capability @ 60 Hz with 4:4:4 chroma sampling on local ports (HDMI and USB-C)
  • Selectable 4K to 1080p downscaling
  • Automatic input selection and automatic display control
  • Audio de-embedding

USB-C and HDMI inputs.

For connecting the latest laptops, you’re all covered.

Supports 4K/60 with 1080p downscaling.

No need to worry about backward incompatibility.

Flexible powering.

Power an under-table OME-ST31A over HDBaseT, or locally.

Display control & automation

The OME-ST31A conveniently provides automatic source switching and display on/off powering based on input signal detection, such as when a laptop is connected or disconnected.

Local and long distance outputs

Two simultaneous outputs are included. One is for a local HDMI display, while the other is for extending video over HDBaseT up to 330 feet (100 meters) to a remote location.

Audio de-embedding to balanced stereo output

The OME-ST31A de-embeds stereo audio from any input source to feed into an amplifier and speakers.

Integrated HDBaseT link monitoring

A built-in, powerful tool provides quick performance validation, as well as troubleshooting to check for integrity of the cable link between the OME-ST31A and HDBaseT receiver.


Misc. Specs

Depth (in.)5.98
Width (in.)8.62
Height (in.)1.02
Manufacturer Warranty10 Year
Product Weight (lbs.)1.95
WarningProposition 65 Warning for California Residents