AJA FiDO-4T-ST Quad Channel 3G-SDI to ST Fiber Transmitter

The AJA FiDO-4T-ST 4-Channel 3G-SDI to ST Fiber Mini Converter delivers reliable, long-distance video transport for broadcast and production workflows. Built in a compact, durable body, this converter is ideal for field, studio, and facility use where space and performance are critical.

With four independent 3G-SDI inputs, the FiDO-4T-ST provides four matched ST fiber outputs. Each channel supports resolutions up to Ultra HD 4K, ensuring pristine video quality across demanding productions. Using single-mode fiber cables, you can transmit signals as far as six miles without compromising image integrity.

Key Features

The FiDO-4T-ST is designed for versatility and reliability. Its small footprint allows installation behind monitors, on the back of racks, or directly on a camera rig. Inputs are equalized and reclocked, guaranteeing stable signal integrity even in challenging environments. Autodetection of video formats simplifies setup and operation, making it ideal for fast-paced workflows.

Technical Advantages

This AJA converter is ASI compatible and meets all SMPTE specifications for professional broadcast and production standards. The locking power connector ensures uninterrupted operation, while the unit consumes only 4W of power for efficient use in portable or rack-mounted applications. The included 5–20V worldwide power supply with four interchangeable adapters supports global deployment.

Real-World Applications

The FiDO-4T-ST is a trusted solution for broadcasters, OB trucks, event production teams, and post-production facilities. Use it to extend camera feeds from the stage to a control room, transport multiple signals in live event venues, or integrate with fiber-based infrastructure in studios. For maximum flexibility, it can be paired with a matching FiDO Mini Converter to deliver seamless fiber-to-SDI return paths.

Whether you’re working on live sports, concerts, corporate events, or high-end broadcast installations, the AJA FiDO-4T-ST provides a rugged, compact, and SMPTE-compliant way to bridge 3G-SDI and fiber.