DJI O4 Air Unit Digital Video Module for FPV with 4K Camera

DJI O4 Air Unit from the DJI brand — is a modern digital video module for FPV drones (category: Drones & Quadcopters > Transmitters) that combines a high-performance camera, a new-generation digital video transmitter, and an antenna in one compact body. The device is designed for pilots of racing and freestyle drones who require maximum image quality, reliable communication, and convenient mounting on various frames.

The O4 provides Full HD 1080p video transmission at 100 fps for smooth viewing during flight, and also supports 4K video recording at 60 fps in MP4 format for professional flight archiving. The transmission system operates in two frequency bands — 5.1 GHz and 5.8 GHz — with automatic switching to minimize interference and ensure stable communication over long distances. Thanks to an advanced encoding algorithm and optimized data transmission, the module demonstrates low latency: the technical description mentions 20 seconds, and a special Racing mode reduces latency to 20 ms, which is critical for competitions and fast maneuvers.

The new sensor, modern image processing algorithms, and Canvas Mode support allow for clear, rich video even in challenging lighting conditions and enable customization of the goggle interface to the pilot's needs. The compact design, light weight, and universal mounts facilitate the module's installation and integration into a wide range of FPV configurations.

Key advantages of the DJI O4 Air Unit:

• High video quality: supports 4K recording at 60 fps (MP4 format) for detailed flight archiving.
• Smooth Full HD 1080p transmission at 100 fps for precise viewing during drone control.
• Low latency: 20 seconds specified in the description; Racing mode provides latency up to 20 ms.
• Stable transmission: automatic selection between 5.1 GHz and 5.8 GHz reduces interference.
• Supports simultaneous operation of up to eight drones in racing mode.
• Compatible with Canvas Mode for flexible data display in goggles.
• Easy mounting: compact dimensions and light weight for simple installation on various FPV drone frames.

Technical specifications of the camera and module

Package contents

The set includes: 1 × video transmission module, 1 × camera module, 1 × coaxial cable, 1 × 3-in-1 cable, 1 × antenna, 1 × manual. This kit allows for quick integration of the DJI O4 Air Unit into a drone configuration and enables the use of all the benefits of digital video transmission and 4K recording.

The DJI O4 Air Unit is ideal for those who value high image quality, fast response, and reliable communication in competitions and freestyle. With Canvas Mode support, automatic frequency selection, and the ability for multiple drones to operate simultaneously, the module will become a key element of your FPV system.

Other products in this category here Transmitters