• RadioMaster TX15 Max transmitter front view with red CNC gimbals, switches, and 3.5in touchscreen
  • RadioMaster TX15 Max radio controller front view, shown in red, silver, and gold trim versions
  • Angled view of TX15 Max controller with red gimbals, top toggles, and front touchscreen
  • Three-quarter front view showing TX15 Max switch layout, gimbals, and textured side grip
  • Close-up of TX15 Max top switches and metal gimbal sticks with red anodized adjustment knobs
  • Rear battery bay compartment showing internal board area and warning label inside TX15 Max
  • TX15 Max controller beside RadioMaster zippered carrying case with handle
  • TX15 Max package contents: transmitter, carrying case, spare parts, USB cable, and manuals
  • TX15 Max rear view with RadioMaster neck strap mount, textured grips, and battery cover
  • TX15 Max left side profile showing ergonomic grip texture and protruding top controls
  • TX15 Max right side profile with textured grip, gimbal stick ends, and side contour
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RadioMaster TX15 Max Radio Controller (ELRS/M2) for RC Models, STM32 H750, 2.4GHz/Sub-G 900MHz, 3.5in IPS Touchscreen

RadioMaster TX15 Max Radio Controller (ELRS/M2) for RC Models, STM32 H750, 2.4GHz/Sub-G 900MHz, 3.5in IPS Touchscreen

RadioMaster

$284.99 USD
$284.99 USD
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Overview

The RadioMaster TX15 Max is a radio controller for RC models, built around a high-performance STM32 H7 (STM32H750) processor for fast EdgeTX operation, quick model switching, and responsive script execution. It integrates an LR1121 Semtech transceiver for multi-frequency ExpressLRS (ELRS) operation on 2.4GHz or Sub-G 900MHz, plus onboard flash memory and MicroSD expansion for model and system storage.

For setup assistance, firmware questions, or spare parts support, contact support@rcdrone.top or visit https://rcdrone.top/.

Key Features

  • Processor: STM32 H7 (STM32H750)
  • Internal RF link: Semtech LR1121 ExpressLRS (2.4GHz or Sub-G 900MHz)
  • Display: 3.5-inch IPS color touchscreen (480 x 320), 262K color, 600 nits brightness
  • Gimbals: AG02 CNC Hall sensor gimbals; quad precision bearings; adjustable vertical and horizontal travel
  • Cooling: cooling fan plus aluminium heat sink
  • Smart active balance charging: balance battery circuit designed to prevent overcharging and improve battery efficiency
  • Storage: high-speed internal flash memory plus MicroSD support
  • Controls & lighting: customizable RGB gimbal lighting; six customizable RGB buttons; CNC metal keys; foldable antenna; anti-slip back grip
  • Sensors: built-in motion sensor (ICM-42607-C) with TiltX/TiltY functions
  • USB-C: data transmission, charging, and simulator use (USB Joystick (HID) / USB Storage (SD) / USB Serial (VCP))
  • Shoulder switch customization: replaceable shoulder switches included

Specifications

Item TX15 Max Radio Controller
Size 178*168*81mm
Weight 672g (without battery)
Color Red / Black / Gold
Frequency 2.400GHz or Sub-G 900MHz
Internal RF ELRS 2.4GHz / Sub-G 900MHz (ExpressLRS Single LR1121)
Supported Protocols Express-LRS
Channels Max 16 channels (receiver dependent)
Display 3.5-inch IPS touchscreen (480 x 320 resolution), 262K color, 600 nits
Cooling Fan Yes
Transmitter Module Built-in ELRS
Built-in Flash Yes
Built-in Flash Size 4GB
MicroSD Card Yes (not included); 32GB/FAT32. Inserting a MicroSD card will disable the onboard flash.
Built-in Microphone Yes (future expansion)
Built-in Motion Sensor Yes (ICM-42607-C)
Antenna Gain 2dB (transmit power adjustable)
Current 875mA at max power output
Voltage Range 6.6 - 8.4V DC
Battery 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included)
Connectivity USB-C
Radio Firmware EdgeTX (Transmitter) (requires version 3.0.0 or later)
Module Firmware ExpressLRS
Gimbals AG02 CNC Hall sensor gimbals
Gimbal Sticks M4
Upgrade Method Supports both USB-C online and UF2 offline firmware upgrades
Module Bay JR-compatible module bay for additional modules

Dimensions

Height 178.0 mm
Width 168.0 mm
Depth 81.0 mm

What’s Included

  • 1 * TX15 Max Radio Controller
  • 1 * Signature Carry Case
  • 1 * Short 2-position Latching Shoulder Toggle Switch Assembly
  • 1 * Short 2-position Momentary Shoulder Toggle Switch Assembly
  • 1 * 18650 Battery Tray
  • 1 * USB-C Cable
  • 1 * Screen Protector
  • 1 * 1.5mm Hex Wrench
  • 4 * High Tension Gimbals Springs
  • 2 * Gimbal Stick Set Screw
  • 1 * Stickers Set
  • 1 * User Manual
  • 1 * Inventory Card

Applications

  • EdgeTX-based radio control for RC models using ExpressLRS (2.4GHz or Sub-G 900MHz)
  • USB-C simulator use (USB Joystick (HID))

Manuals

Details

RadioMaster TX15 Max RC radio controller lineup in black, red, and gold with 3.5-inch touchscreen

Choose the TX15 Max for a fast EdgeTX experience with a bright 3.5-inch touchscreen and built-in multi-band ELRS RF.

STM32H750 (STM32 H7) processor highlight graphic for the RadioMaster TX15 Max radio controllerSemtech LR1121 transceiver graphic for multi-frequency ExpressLRS on 2.4GHz or sub-G 900MHzTX15 Max 3.5-inch high-visibility color touchscreen interface with 262K colors and 600 nits brightness callouts

The STM32H750 H7 platform keeps menus, model switching, and Lua scripts feeling quick and responsive.

RadioMaster TX15 Max cooling system graphic showing fan airflow and aluminum heat sink inside the caseAG02 CNC Hall gimbal close-up with customizable RGB lighting and CNC metal keys color options

AG02 CNC Hall gimbals with adjustable travel help dial in the stick feel, with RGB lighting for personal style.

Smart active balance charging graphic with dual 18650 cells inside the RadioMaster TX15 Max battery bay

Smart active balance charging support is designed to help protect battery health during charging.

High-speed internal flash memory and MicroSD card slot graphic for TX15 Max storage options

Store models and system files on the built-in flash, or use a MicroSD card for expanded capacity.

Foldable antenna detail on the top of the TX15 Max radio controller with shoulder switches and trim controls

A foldable antenna keeps the controller easier to pack while maintaining ELRS operation on 2.4GHz or sub-G 900MHz.

TX15 Max feature collage showing carbon fiber pattern case, external module support, RGB buttons, and anti-slip gripSingle USB-C port detail with EdgeTX screen showing USB joystick (HID), USB storage (SD), and USB serial (VCP)

One USB-C port handles data transfer, charging, and simulator use without extra adapters.

RadioMaster TX15 Max specifications table listing size, weight, display, RF module, storage, and power detailsTX15 Max radio controller dimension diagram showing approximately 178 mm tall, 168 mm wide, and 81 mm deepPackage contents layout for TX15 Max including carry case, USB-C cable, screen protector, switch parts, and tools

Included accessories cover basics like the carry case, USB-C cable, screen protector, spare switches, and tools.

mLRS Serial & RC link logo graphic with wireless signal icon

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