Gefen EXT-HD-3G-C HDMI to 3GSDI Converter Features
The Gefen EXT-HD-3G-C converts audio and video from HDMI to 3G-SDI format, at resolutions up to 1080p. Audio formats up to 8 channels of LPCM are supported. This product is fully compatible with the Gefen Syner-G software suite for firmware updates and in-depth device configuration. The unit’s compact enclosure, while light enough to be held in place using double-sided touch fastener tape, features a standard 1/4″-20 attachment provision as well as a detachable surface-mounting bracket. This, along with a flexible power input circuitry capable of accepting a wide range of DC voltages and a locking power supply connector, makes the EXT-HD-3G-C useful for mobile A/V applications as well as fixed installations.
- 1080p Resolution: Supports high-definition video up to 1080p, ensuring excellent image clarity for professional applications.
- Audio Support: Handles up to 8 channels of LPCM audio, allowing for flexible audio routing and high-quality sound.
- Compact Design: The lightweight enclosure can be easily mounted with double-sided tape or a standard 1/4″-20 attachment, offering versatility in installation.
- Power Flexibility: Accepts a wide range of DC voltages, making it suitable for various power setups in both mobile and fixed environments.
- Locking Power Connector: Ensures a secure power connection, reducing the risk of accidental disconnections during use.
- Syner-G Compatibility: Fully compatible with Gefen’s Syner-G software for easy firmware updates and device configuration, enhancing usability.
Gefen EXT-HD-3G-C Detailed Specifications
| Input Format | HDMI |
| Output Format | 3G-SDI |
| Maximum Resolution | 1080p |
| Audio Channels | Up to 8 channels of LPCM |
| Power Input | Wide range DC voltage |
| Mounting Options | Double-sided tape, 1/4″-20 attachment, surface-mounting bracket |
| Power Connector | Locking type |
| Compatibility | Gefen Syner-G software |



















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