Cables and accessories

A stable video signal in an FPV drone is impossible without quality coaxial cables and flex cables. Even the latest digital systems can work unstably if the connection is unreliable. Here you will find all the components for connecting DJI O4, Pro Air Unit, and other video transmitters.

What is a coaxial cable for FPV?

A coaxial cable (flex cable) is a special wire that transmits video signal from the camera to the video transmitter. It consists of a central conductor, shielding, and an outer sheath that protects against interference and mechanical damage.

Why is it important to choose the right cable?

• Signal quality: The right cable ensures clarity and stability of the video stream without losses
• Durability: Quality materials withstand vibrations, impacts, and temperature fluctuations
• Compactness: Flexibility and small size are important for installation in the limited space of a drone
• Compatibility: Different systems require different types of connections

Popular brands in our assortment

Axisflying — premium quality and reliability for DJI O4. Perfectly suited for freestyle and racing drones where every detail matters.

GEPRC — optimal price-to-quality ratio. Wide selection of cable lengths for different frame configurations.

DJI — original cables from the digital systems manufacturer. Guaranteed compatibility with O4 and Pro Air Unit.

How to choose a cable for your drone?

1. Identify the system: First of all, determine which video system is installed on your drone — DJI O4, Pro Air Unit, or analog system. Each of them uses different types of connectors and has specific cable requirements. DJI digital systems require coaxial cables with a specific impedance (usually 50 Ohm), while analog systems may have different specifications.
2. Measure the distance: Take a tape measure or string and measure the exact distance from the camera mounting location to the video transmitter on your frame. Consider the cable routing path — it should not go in a straight line but should go around frame elements, electronics, and other components. Add 1-2 cm of reserve for comfortable installation, but not more, to avoid excess length.
3. Consider placement: Plan the cable routing path in advance. The cable should be laid without tension, which can lead to connector detachment during vibrations, but also without sagging that could catch on propellers. Avoid areas with high temperatures (near ESC or VTX) and zones where the cable could be rubbed against the carbon frame. Use smooth bends without sharp kinks.
4. Check the connectors: Make sure the cable connectors exactly match the ports on your camera and video transmitter. There are different types: MMCX, U.FL, SMA, and others. Pay attention to the connector gender (male/female) — they should be opposite on the cable and equipment. If in doubt, check with your equipment specifications or consult with our specialists.

Advantages of buying cables at FPV UA

• Only original products from verified brands
• Consultations from experienced pilots
• Fast order processing
• Warranty on all products
• Possibility to check before payment

Installation tips

Don't leave excess cable: Excess cable length not only increases the overall weight of the drone, which negatively affects flight time and maneuverability, but can also create electromagnetic interference for other components. In addition, a freely hanging cable can get into propellers or catch on obstacles during flight. The optimal length is when the cable is laid without tension but also without extra loops.

Avoid sharp bends: Sharp bends in the coaxial cable can damage the internal shielding and central conductor, which will lead to signal quality degradation, video interference, or complete loss of connection. Particularly critical areas are sections near connectors. When laying the cable, use smooth bends with a radius of at least 5-10 mm. If the cable needs to be directed at an angle, it's better to use special angled adapters or mounts.

Secure the cable: Vibrations from motors and wind load during flight can cause mechanical damage to an unsecured cable. Use nylon zip ties, heat shrink, or special 3D-printed mounts to fix the cable to the drone frame. Fix the cable at several points along its entire length, but don't overtighten the zip ties — this can deform or damage the cable. Ideally, the cable should be laid along frame elements and securely fixed.

Check connections: Before each flight, visually and physically check all connectors. Make sure the connectors are fully inserted and secured, there are no visible damages, cracks, or contact oxidation. Gently tug on the cable near the connectors — it should not come out or wobble. If you're using connectors with locks, make sure they clicked and securely hold the connection. After crashes or hard landings, always conduct an additional check of cable and connection integrity.

Order from FPV UA online store

You can buy coaxial cables and accessories for video transmitters at FPV UA online store with payment and delivery throughout Ukraine. We ship orders to Kyiv, Lviv, Kharkiv, Dnipro, Odesa, Zaporizhzhia, Vinnytsia, and other cities of Ukraine. Delivery is carried out by Nova Poshta, Ukrposhta, or courier services. Payment is possible in cash upon receipt, by card online, or to the individual entrepreneur account. Order quality components for your FPV drone and enjoy stable connection in every flight!