Features
Added ExpressLRS Backpack support
Updated main board design from STM32F207 to STM32F407
Improved USB-C QC 3.0 Charging
Precision hall-effect gimbals as standard
EdgeTX operating system installed from the factory
Updated rear case with comfortable grips
Improved S1 / S2 slider grip
SD Card included
Provide M1 and M2 modes
Specification
Item: TX12 Mark II Radio 
Size: 170*159*108mm
Weight: 363g
Frequency: 2.400GHZ-2.480GHZ
RF Chip: ExpressLRS (ELRS) / CC2500
Working Current: 320mA@8.4V (ELRS) / 180mA@8.4V (CC2500)
Voltage Range: 6.6-8.4v DC
Radio Firmware: EdgeTX (Transmitter) / ExpressLRS (RF module) / MPM (RF module)
Channels: Up to 16 (depending on the receiver)
Display: 128*64 Monochrome LCD display
Gimbal: High precision hall gimbals
External module: JR/FrSKY/Crossfire compatible
Upgrade Method: USB/SD card & EdgeTX Buddy online or EdgeTX Companion PC software
USB Charging: QC3 USB-C
SD Card: Included