Overview
The RadioMaster TX16S MK3 MAX is a full-size radio controller built on the TX16S platform, combining a premium hardware build with open-source EdgeTX control. It uses an internal Gemini dual-band ExpressLRS RF module (2 x LR1121) for ISM 2.4GHz and Sub-G 900MHz operation, and features a 5-inch 800 x 480 IPS touchscreen for setup, telemetry, and widget display.
Launch Video
Key Features
- High-performance MCU: STM32H750 (STM32 H7 series).
- Touchscreen display: 5-inch IPS touchscreen, 800 x 480 resolution; “262K” value is shown on the product visuals.
- Gimbals: AG02 CNC Hall sensor gimbals (quad-bearing, CNC aluminum Hall sensor gimbals are referenced).
- Internal RF: ExpressLRS with 2 x Semtech LR1121 (Gemini dual-band, multi-frequency ExpressLRS).
- Dual-band antennas: Twin high-performance, foldable dual-band antennas.
- Cooling: Low-noise, high-output fans and an aluminum heat sink.
- Audio: Digital audio; built-in microphone (noted for future expansion).
- Motion sensor: Built-in motion sensor for tilt-based control functions.
- Storage: Built-in flash memory and microSD card support (microSD card not included).
- Power system: Smart balance battery circuit / smart active balance charging (prevents overcharging, extending battery life).
- Controls & layout (labeled on product visuals): S1 dial, S2 dial; SA/SB/SE 3-position switches; SC/SD/SG 3-position switches; SH momentary switch; SF 2-position switch; LS slider; RS slider; scroll wheel; T1–T6 trim buttons; MDL button; 6 pos buttons; SYS button; RTN button; PAGE- button; PAGE+ button; TELE button; power button; speaker; mic; lanyard loop.
- Modularity: Removable/replacement shoulder switch panels; JR-compatible external module bay support.
- USB: Single USB Type-C port (data transmission, simulator, charging are shown).
- Build details (shown/mentioned): Carbon-fiber pattern case; CNC metal dials and buttons; customizable RGB gimbal lighting; adjustable without disassembly (as stated on product visuals).
Specifications
| Item | TX16S MK3 MAX Radio Controller |
| Color | Black / Red / Blue / Gold |
| Voltage Range | 6.6 - 8.4V DC |
| Working Current | 1.10A (at max RF output power) |
| Radio Firmware | EdgeTX (require 3.0.0 or higher) |
| MCU | STM32H750 |
| Built-in RF Module | ExpressLRS 2 x LR1121 |
| Frequency | ISM 2.4GHz and Sub-G 900MHz |
| Number of Channels | Up to 16ch |
| Gimbal | AG02 CNC Hall sensor gimbals |
| MicroSD Card Slot | Yes (card not included) |
| Built-in Flash Storage | Yes |
| Display | 5-inch IPS touchscreen (800 x 480 resolution) |
| Battery | Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery / 2S 7.4V 6200mAh LiPo (batteries not included) |
| Upgrade Method | USB / EdgeTX Companion PC software |
| Module Bay | JR-compatible module bay for additional modules |
| Dimensions | 200 x 178 x 88 mm (also shown as 200.0 mm / 178.0 mm / 88.0 mm) |
| Weight | 864 g (without battery) |
What’s Included
- 1 x TX16S MK3 MAX Radio Controller
- 1 x TX16S MK3 Signature Carry Case
- 1 x 18650 Battery Tray
- 2 x Replacement Shoulder Panels
- 1 x Type-C Cable
- 1 x Screen Protector
- 1 x 1.5mm Hex Wrench
- 4 x Low Tension Gimbals Springs
- 2 x Gimbal Stick Set Screws
- 1 x Nylon Neck Strap (Lanyard)
- 1 x RadioMaster Sticker Set
- 1 x TX16S MK3 Manual
- 1 x Inventory Card
Applications
- ExpressLRS radio control for compatible RC models using ISM 2.4GHz and Sub-G 900MHz
- Multi-model setup and telemetry display with EdgeTX
- PC simulator use via USB Type-C (simulator use is shown)
- Expansion via JR-compatible external module bay
Manuals & Documentation
How to change modes (Mode 2 to Mode 1)
For product support, manuals, and after-sales assistance, contact https://rcdrone.top/ or email support@rcdrone.top.
Details

TX16S MK3 MAX pairs a premium full-size chassis with EdgeTX and an internal Gemini dual-band ExpressLRS system.


A 5-inch 800×480 IPS touchscreen keeps setup, telemetry, and widgets easy to read while you fly.

Gemini dual-band ExpressLRS uses dual LR1121 RF chips for strong link quality and low-latency control.

AG02 CNC Hall-sensor gimbals and metal controls deliver a precise feel, with customizable RGB gimbal lighting.

The familiar TX16S layout puts switches, sliders, trims, and navigation controls right where muscle memory expects them.

Modular hardware includes a JR-compatible external module bay and replaceable shoulder switch panels.

Low-noise fans and an aluminum heat sink help maintain consistent performance at higher RF output power.

Smart active balance charging is designed to protect and extend the life of two 18650 Li-ion cells.


A built-in motion sensor enables tilt-based inputs for compatible models and functions.


A single USB‑C port supports data connection, simulator use, and charging.



Everything needed to get started is included, with a signature carry case plus tools and spare parts.
