Overview
The RadioMaster GX12 Crush is a dual-band ELRS radio controller (Mode 2 / M2) built on the Gemini-XROSSBAND ExpressLRS platform, providing simultaneous transmission on 2.4GHz and Sub-G 900MHz. It pairs CNC aluminum GX01 1000Hz digital gimbals with EdgeTX sync, integrated folding dual-band antennas, modular switch panels, and USB-C charging/data in a compact field transmitter designed for RC models.
GX12 Crush tagline: “Style that sends, tech that talks.” Available colors: Iron Grey, Frost White, Mint Mist, Hot Pink, Iceberg Blue, Lemon Twist Yellow.
Launch Video
Key Features
- Dual-band ELRS Gemini Xrossband: Dual 1W Gemini Xrossband ExpressLRS transmitters for 2.4GHz + Sub-G 900MHz operation.
- Integrated folding dual-band antennas: Dual folding 2.4GHz/Sub-G 900MHz omni directional antennas.
- GX01 gimbals: Fully CNC aluminum 3D digital Hall sensor gimbals; 1000Hz digital gimbals with EdgeTX sync.
- Folding gimbal sticks: Folding sticks; Gimbal sticks: M3.
- Customizable controls: Removable switch panels; programmable 6-position switch; RGB indicators on 6-position and SA/SD switches.
- USB-C port: Smart balance charging, SIM connectivity, firmware updates, and direct access to integrated flash storage.
- Internal storage: 512MB integrated high-speed flash storage (no TF card required).
- Cooling: Built-in cooling fan and cooling system for dual 1W transmitters.
- DIY SMA ports: SMA port integration for antenna installation flexibility.
- PCB nano coating: Hydrophobic PCB coating.
Specifications
| Item | GX12 Crush Radio Controller |
| Color | Iron Grey, Frost White, Mint Mist, Hot Pink, Iceberg Blue, Lemon Twist Yellow |
| Size | 183*148*78mm |
| Weight | 573g |
| Frequency | 2.400GHz and Sub-G 900MHz |
| Internal RF | ELRS 2.4GHz / Sub-G 900MHz |
| Supported Protocols | Express-LRS |
| Cooling Fan | Yes |
| Antenna | Dual folding 2.4GHz/ Sub-G 900MHz omni directional |
| Voltage Range | 6.6 - 8.4V DC |
| Current | 390mA - 1000mA (Depending on RF output) |
| Radio Firmware | EdgeTX (Transmitter) / ELRS (RF module) |
| Channels | Max 16 channels (Receiver dependent) |
| Battery | 7.4V 2-cell Lithium-Polymer / Two 3.7V 18650 Lithium-Ion cells / 21700 5000mAh Battery (batteries not included) |
| Charging | 2S Smart Balance Charging |
| Connectivity | USB-C |
| Display | 128*64 Monochrome OLED display |
| Gimbal | GX01 1000Hz, 3D Digital CNC Hall Effect Gimbal with folding sticks |
| Gimbal Sticks | M3 |
| External Module | Nano / Crossfire compatible |
| Upgrade Method | USB / EdgeTX Companion PC software |
| Memory | 512MB Integrated Flash |
Dimensions
- 183*148*78mm (listed size)
- Additional dimension shown: 56mm
What’s Included
- 1 * GX12 Crush Radio Controller
- 1 * Signature Carry Case
- 1 * 18650 Battery Tray
- 2 * Replacement Switch Panels
- 1 * Type-C Cable
- 1 * Screen Protector
- 1 * 1.5mm Hex Wrench
- 4 * High Tension Gimbals Springs
- 6 * Switch Delete Plugs
- 1 * 2 Position Switch
- 1 * Momentary Switch
- 1 * RadioMaster Sticker Set
- 1 * GX12 Manual
For pre-sales questions, setup help, or after-sales support, contact https://rcdrone.top/ or email support@rcdrone.top.
ExpressLRS & mLRS Notes
- ExpressLRS installed as standard: GX12 Crush is installed with ExpressLRS as standard. ExpressLRS is an open-source RC control link based on LoRa technology.
- mLRS compatibility: “mLRS SERIAL & RC LINK” compatibility is noted for GX12 Crush.
Informational links: ExpressLRS, mLRS project, mLRS Web Flasher.
Download
Details

Choose from six GX12 Crush colorways to match your build while keeping the same dual-band ELRS platform.

Iron Grey delivers a clean, understated look for a compact field transmitter setup.

Frost White pairs the GX12 Crush design with an easy-to-spot finish for outdoor flying days.

Iceberg Blue adds bold visibility without changing the familiar switch and control layout.

Mint Mist brings a bright, modern look while keeping the same GX01 gimbal and EdgeTX-ready control set.

Hot Pink stands out on the bench and in the field for quick identification in a busy gear bag.

Lemon Twist Yellow is built for high visibility when flying with friends or organizing multiple radios.

A full spec breakdown covers dual-band operation, EdgeTX/ELRS firmware, power, and supported battery configurations.

Dimensions are provided to help compare fit and ergonomics against your current transmitter.

Everything included is listed for easy checkout planning, from the carry case to spare switch parts and tools.
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