---
product_id: 256250489
title: "AKK FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility"
brand: "akk"
price: "€ 47.89"
currency: EUR
in_stock: true
reviews_count: 5
category: "Akk"
url: https://www.desertcart.fr/products/256250489-akk-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable
store_origin: FR
region: France
---

# 7-24V wide input range Up to 600mW switchable power OSD config via Smart Audio AKK FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility

**Brand:** akk
**Price:** € 47.89
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your FPV game with power, precision, and plug-n-play ease!

## Quick Answers

- **What is this?** AKK FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility by akk
- **How much does it cost?** € 47.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/256250489-akk-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable)

## Best For

- akk enthusiasts

## Why This Product

- Trusted akk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Grade Compatibility:** Supports MMCX+UFL connectors and 7-24V input with 5V camera output, making it ideal for advanced FPV setups.
- • **Crystal-Clear Transmission:** Experience up to 2 km range with omnidirectional RHCP antennas for uninterrupted FPV immersion.
- • **Compact & Lightweight Design:** At just 5.4g and 26x26mm, it fits perfectly on any build without weighing you down.
- • **Plug & Play Smart Audio Setup:** One-button channel, band, and power configuration with OSD control ensures zero hassle and zero downtime.
- • **Power Flexibility at Your Fingertips:** Seamlessly switch between 25mW, 200mW, 400mW, and 600mW to match your flight needs and regulations.

## Overview

The AKK FX3-ultimate is a versatile 5.8GHz mini video transmitter offering four switchable power levels (25/200/400/600mW) with a wide 7-24V input range and 5V camera output. Featuring Smart Audio OSD configuration, MMCX+UFL connectors, and pit mode support, it delivers up to 2 km range in a compact 5.4g package, designed for professional FPV pilots seeking reliable, customizable transmission.

## Description

Features: SUPPORT Pit Mode 7-24V input, 5V output for your camera 25mW/200mW/400mW/600mW power switchable 0.01mW parameter-adjusting Mode, power with zero interference MMCX+UFL connector, One button setup channel/band/power With MIC, OSD configuration using Smart audio Specifications: Input voltage: 7V-24V Power supply: 5V Camera @ under 0.3A max. Output power: 25mW: 100mA 200mW: 200mA 400mW: 250mA 600mW: 320mA @12V Range: Up to 2 km with omnidirectional RHCP antennas Port connector: Solder Pads Antenna connector: MMCX/U.FL Dimensions: 26(W)x26(D)mm,20x20mm(hole) Weight:5.4g(excluding antenna) Package includes: 1x FX3-ultimate 1x Cable 1x MMCX Antenna 1x Product manual Notice: 5645,5925,5945(E4,E7,E8) channels are not available due to FCC regulation. Selecting 5645/5925/5945(E4/E7/E8) will be invalid action. Please read the Info before purchasing. Due to the equipment need being sold under the FCCs amateur radio rules. This product requires an amateur radio license to operate legally in the US. Operators must abide by all applicable laws and hold an amateur license to operate this equipment. Use of amateur equipment without a license could subject the operator to significant fines by the FCC.

Review: Using this vtx on a 4 inch long range build and it has crystal clear transmission, especially when paired with the caddx ratel camera I'm using it with. The vtx table was easy to setup and the smart audio works without issue.
Review: Don’t waste your money on this there is way better out there at the same price.

## Features

- 7 24V input, 5V output for your camera
- 25mW/200mW/400mW/600mW power switchable
- With MIC, OSD configuration using Smart audio
- MMCX+UFL,Solder Pads connector, One button setup channel/band/power
- 0.01mW parameter adjusting Mode, power with zero interference.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DYL677Z |
| Additional Features | Smart Audio Compatibility |
| Amperage | 0.3 Milliamps |
| Brand | AKK |
| Built-In Media | Camera, Product Manual |
| Compatible Devices | Cameras |
| Compatible Phone Models | iPhone series, Samsung Galaxy series, and other 5V-charging-capable smartphones |
| Connectivity Technology | MMCX+UFL |
| Connector Type | MMCX+UFL |
| Current Rating | 320 Milliamps |
| Customer Reviews | 4.0 4.0 out of 5 stars (92) |
| Enclosure Material | FX3-ultimate |
| Frequency Range | 5.8GHz |
| Input Voltage | 24 Volts |
| Item Weight | 41 g |
| Main Power Connector Type | 2 pin |
| Manufacturer | AKK |
| Model Number | FX3-ultimate |
| Mounting Type | Tabletop Mount |
| Number of Items | 1 |
| Number of Power Levels | 4 |
| Output Current | 9 Amps |
| Output Voltage | 5 Volts |
| Portable | Yes |
| Power Plug | No Plug |
| Power Source | DC |
| Specification Met | FCC |
| Total Usb Ports | 1 |
| Wattage | 45 watts |

## Product Details

- **Amperage:** 0.3 Milliamps
- **Brand:** AKK
- **Compatible devices:** Cameras
- **Compatible phone models:** iPhone series, Samsung Galaxy series, and other 5V-charging-capable smartphones
- **Connector type:** MMCX+UFL
- **Included components:** Camera, Product Manual
- **Input voltage:** 24 Volts
- **Special features:** Smart Audio Compatibility
- **Total USB ports:** 1
- **Wattage:** 45 watts

## Images

![AKK FX3-ultimate 5.8GHz 25/200/400/600mW Switchable Mini VTX, OSD Configuring via Betaflight, Supports Pit Mode, MMCX+UFL Connector, Smart Audio Compatibility - Image 1](https://m.media-amazon.com/images/I/61EgoNkMuqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 3 August 2025*

Using this vtx on a 4 inch long range build and it has crystal clear transmission, especially when paired with the caddx ratel camera I'm using it with. The vtx table was easy to setup and the smart audio works without issue.

### ⭐ Review
*by M***2 on 24 July 2022*

Don’t waste your money on this there is way better out there at the same price.

### ⭐ Review
*by C***N on 5 April 2020*

Does not working with smartaudio otherwise works ok

## Frequently Bought Together

- AKK FX3-ultimate 5.8GHz 25mW/200mW/400mW/600mW Switchable Mini VTX Support OSD Configuring via Betaflight
- SoloGood Caddx Ant FPV Camera 1200TVL Global WDR OSD 1.8mm Nano FPV Camera 16:9 NTSC PAL for RC FPV Cinewhoop Tinywhoop Drone
- SpeedyBee F405 Mini Flight Controller Stack board 3-6S 20x20mm Built-in Bluetooth with 35A BLHeli_S 4in1 ESC Board Support Wireless Tuning

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**Shop now:** [https://www.desertcart.fr/products/256250489-akk-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable](https://www.desertcart.fr/products/256250489-akk-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-04-24*