Atlona AT-OME-ST31A Three-Input Switcher and HDBaseT Transmitter
The AT-OME-ST31A is a compact 3×1 switcher and HDBaseT transmitter engineered for modern AV communications and collaboration environments. Featuring dual USB-C and HDMI video inputs with mirrored HDMI and HDBaseT outputs, this Omega Series integration product delivers 4K/UHD capability at 60 Hz with 4:4:4 chroma sampling. Ideal for conference rooms, huddle spaces, and remote collaboration setups, it supports automatic input selection, display control, and remote powering over HDBaseT—eliminating cable clutter and simplifying installation.
Key Features
- 3×1 video input switching with automatic source selection
- USB-C and HDMI video inputs for multi-device connectivity
- Mirrored HDMI and HDBaseT outputs for flexible distribution
- 4K/UHD 60 Hz support with 4:4:4 chroma sampling on local ports
- Remote powering capability over HDBaseT with optional local power
- Two-channel audio de-embedding to balanced analog output
- Compact form factor for seamless integration into AV systems
- Display control and automatic input detection
- Part of Atlona's Omega Series for modern collaboration
Technical Specifications
| Specification |
Details |
| Manufacturer |
Strategic Sourcing (Atlona) |
| Part Number |
AT-OME-ST31A |
| Product Type |
3×1 Switcher and HDBaseT Transmitter |
| Video Inputs |
2× USB-C, 1× HDMI |
| Video Outputs |
1× HDMI (local), 1× HDBaseT |
| Video Resolution |
4K/UHD at 60 Hz, 4:4:4 chroma sampling |
| Audio Output |
Two-channel de-embedded balanced analog |
| Power Options |
Remote powering over HDBaseT or local power supply |
| Series |
Omega Series |
| Applications |
AV communications, collaboration, conference rooms |
Frequently Asked Questions
What is an HDBaseT transmitter and why do I need one?
An HDBaseT transmitter extends high-quality video, audio, and control signals over a single Cat5e/Cat6 cable up to 100 meters. The AT-OME-ST31A combines switching and transmission, allowing you to consolidate multiple input sources and distribute them efficiently without running separate HDMI cables—ideal for large conference rooms or distributed AV systems.
Can the AT-OME-ST31A switch between USB-C and HDMI inputs automatically?
Yes. The 3×1 switcher features automatic input selection and display control, detecting active sources and switching seamlessly. This eliminates manual switching and ensures the correct input is always displayed without user intervention.
Does the AT-OME-ST31A support 4K resolution?
Absolutely. The unit delivers 4K/UHD at 60 Hz with 4:4:4 chroma sampling on local HDMI ports, ensuring pristine image quality for presentations, video conferencing, and professional content delivery in modern collaboration spaces.
What are the power options for the AT-OME-ST31A?
The HDBaseT transmitter supports remote powering over the HDBaseT connection, eliminating the need for a separate power cable at the transmitter location. Alternatively, local power can be supplied if preferred, offering flexibility in installation and cable management.
