RadioMaster GX12 Crush Dual-Band Gemini-X ELRS Radio Controller (M2) White
by RadioMaster

The RadioMaster GX12 Crush Dual-Band Gemini-X ELRS Radio Controller (Mode 2, Frost White) is a compact radio transmitter engineered for signal reliability and performance in FPV drone racing, freestyle, and fixed-wing flight. Operating on the ExpressLRS Gemini-XROSSBAND (Gem-X) platform, the GX12 Crush simultaneously transmits on both 2.4GHz and Sub-G 900MHz frequencies using dual 1W internal transceivers for high interference rejection, low latency, and extended range.

Designed with precision CNC aluminum GX01 1000Hz 3D digital Hall-effect gimbals featuring folding sticks, the GX12 Crush eliminates the need for bulky gimbal guards during transport. It features integrated folding dual-band omnidirectional antennas, a crisp 128x64 monochrome OLED display, 512MB of high-speed onboard flash memory, and a single USB-C port that manages 2S smart balance charging, simulator connection, and direct storage access. With modular, customizable switch panels, programmable RGB-backlit 6-position switches, active cooling, and a hydrophobic PCB nano-coating for weather resilience, the GX12 Crush offers high performance in a sleek Frost White shell.

Key Features

• Gemini-XROSSBAND Dual-Band RF: Simultaneous dual 1W transmission on 2.4GHz and 900MHz frequencies for ultimate link stability and interference immunity.

• GX01 1000Hz Digital CNC Gimbals: Fully CNC aluminum 3D digital Hall-effect gimbals with EdgeTX sync deliver 1000Hz refresh rate accuracy and folding sticks for compact storage.

• Integrated Folding Antennas: Dual-band 2.4GHz/900MHz omnidirectional antennas fold neatly into the housing for travel convenience.

• 512MB Onboard Flash Storage: Built-in high-speed internal memory eliminates the requirement for external SD/TF cards.

• Single USB-C Multifunction Port: Handles 2S smart balance battery charging, simulator link, firmware updates, and direct flash storage access.

• Customizable RGB Switch Lighting: Individually programmable 6-position flight mode buttons and SA/SD switches with RGB visual status indicators.

• Removable Modular Switch Panels: Modular shoulder panels allow custom switch layouts to suit individual pilot preferences.

• Hydrophobic PCB Nano-Coating: Protects internal electronics against moisture, humidity, and challenging weather conditions.

• Active Cooling System: High-efficiency internal cooling fan and heat sink prevent thermal throttling during high-power 1W transmission.

Technical Specifications

• Brand / Manufacturer: RadioMaster

• Model Identifier: GX12 Crush Dual-Band Gemini-X (Mode 2)

• Color Finish: Frost White

• Size Class: Compact Ergonomic Transmitter

• Dimensions: 183 mm x 148 mm x 78 mm

• Net Weight: 573 grams (without battery)

• Operating System / Radio Firmware: EdgeTX

• Internal RF Protocol: ExpressLRS Gemini-XROSSBAND (Gem-X) Dual-Band (2.4GHz & Sub-G 900MHz)

• Max RF Output Power: Dual 1000mW (1W) Transmitters

• Supported Receivers: 2.4GHz ELRS, 900MHz ELRS, and Gemini-Xrossband Dual-Band Receivers

• Display: 128 x 64 Monochrome OLED Display

• Gimbals: GX01 1000Hz 3D Digital CNC Aluminum Hall-Effect Gimbals

• Gimbal Stick Threads: M3 (Foldable Sticks)

• Internal Storage: 512MB High-Speed Flash Memory

• Antenna Type: Dual Folding 2.4GHz / Sub-G 900MHz Omnidirectional

• Cooling: Active Internal Cooling Fan

• Channel Capacity: Up to 16 Channels (Receiver dependent)

• Operating Voltage: 6.6V – 8.4V DC

• Current Draw: 390mA – 1000mA (RF power dependent)

• Battery Support: 7.4V 2-cell LiPo, Two 3.7V 18650 Li-Ion cells, or 21700 5000mAh Pack (Batteries not included)

• Charging Interface: 2S Smart Balance USB-C Charging (Up to 12W / 5V 2.4A)

• External Module Support: Lite / Nano Module Bay (Crossfire compatible)

What Is Included

• (1) RadioMaster GX12 Crush Radio Controller (Mode 2 - Frost White)

• (1) Signature Zippered Carry Case

• (1) 18650 Battery Tray

• (2) Replacement Modular Switch Panels

• (1) USB-C Charging & Data Cable

• (1) OLED Screen Protector

• (1) 1.5mm Hex Wrench

• (4) High-Tension / Low-Tension Gimbal Springs

• (6) Switch Delete Plugs

• (1) 2-Position Switch Module

• (1) Momentary Switch Module

Needed to Complete

• (2) 3.7V 18650 Lithium-Ion Batteries OR (1) 2S 7.4V LiPo / 21700 5000mAh Battery Pack

• (1) Compatible ExpressLRS 2.4GHz, 900MHz, or Gemini-Xrossband Receiver