--- product_id: 256250489 title: "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: "€ 41.70" currency: EUR in_stock: true reviews_count: 5 category: "Akk" url: https://www.desertcart.pt/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini store_origin: PT region: Portugal --- # 7-24V wide input range Up to 600mW switchable power Dual MMCX+U.FL antenna connectors 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:** € 41.70 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your FPV game with ultimate power and precision! ## Quick Answers - **What is this?** 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?** € 41.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini) ## 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 - • **Pit Mode Ready:** Instantly mute your VTX signal in crowded races to avoid interference and stay in the game. - • **Compact Yet Mighty:** Miniature 26x26mm form factor with ultra-light 5.4g weight—powerful performance without the bulk. - • **Dual Connector Freedom:** MCXC and U.FL connectors give you ultimate antenna flexibility for crystal-clear video and extended range. - • **Power Your Flight Your Way:** Switch effortlessly between 25mW, 200mW, 400mW, and 600mW to match your range and regulatory needs. - • **Seamless Smart Audio Control:** Configure OSD and settings on the fly via Betaflight with Smart Audio compatibility—no more fumbling with buttons. ## Overview The AKK FX3-ultimate is a compact, lightweight 5.8GHz video transmitter designed for professional FPV pilots. It supports a wide 7-24V input, delivers switchable output power from 25mW up to 600mW, and features dual MMCX and U.FL antenna connectors for maximum flexibility. With Smart Audio compatibility and OSD configuration via Betaflight, it offers seamless in-flight adjustments including a Pit Mode for interference-free racing. Ideal for those demanding reliable, customizable video transmission with minimal setup. ## 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: Waste of Money - Don’t waste your money on this there is way better out there at the same price. Review: Great VTX U.FL and MMCX - I had several of these little ones and they work excellent. Clear vision and the range is great too. This vtx has mmcx and ufl so your options for antenna are endless. ## 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 | | 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 | | 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 | | Connector type | MMCX+UFL | | Current | DC | | Current Rating | 320 Milliamps | | Customer Reviews | 4.0 out of 5 stars 100 Reviews | | Enclosure Material | FX3-ultimate | | Form Factor | Mini | | Frequency Range | 5.8GHz | | Included components | Camera, Product Manual | | Input Voltage | 24 Volts | | Item Weight | 41 g | | Main Power Connector Type | 2 pin | | Manufacturer | AKK | | Mfr Part Number | FX3-ultimate | | 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 | | Special Features | Smart Audio Compatibility | | Special features | Smart Audio Compatibility | | 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 ![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 ### ⭐ Waste of Money *by M***2 on 24 July 2022* Don’t waste your money on this there is way better out there at the same price. ### ⭐⭐⭐⭐⭐ Great VTX U.FL and MMCX *by D***M on 10 March 2022* I had several of these little ones and they work excellent. Clear vision and the range is great too. This vtx has mmcx and ufl so your options for antenna are endless. ### ⭐ smart audio doesnt work *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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini](https://www.desertcart.pt/products/256250489-fx3-ultimate-5-8ghz-25-200-400-600mw-switchable-mini) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-08-31*