
Our current stock of Radiomaster TX16S MK3 radios comes with 4GB internal memory.
Radiomaster has officially announced a transition to 512MB internal flash for all future production of the TX15 and TX16S MK3 radios.
All orders up to now are covered with 4GB units. Once this batch is sold out, incoming radios will feature 512MB internal memory.
If you prefer the 4GB version, now is the time—once these are gone, they’re gone.
There are no changes to performance or functionality. The 512MB version remains more than sufficient for normal use, and all radios continue to support external SD cards.

Launch Video



- High-performance MCU: STM32 H7 for maximum processing power
- 5” 800×480 IPS touchscreen display with vivid color and sharp detail
- V6 quad-bearing Hall sensor gimbals (AG02 compatible)
- RGB programmable gimbal light rings (LUA-controlled)
- Internal dual-band Gemini RF: 2.4GHz + Sub-G 900MHz
- Smart balance battery circuit to maximize efficiency and longevity
- Cooling system with low-noise fans + aluminum heat sink
- Digital audio for improved sound quality and reduced interference
- Dual foldable antennas for compact storage without sacrificing signal
- Built-in microphone (future feature expansion)
- Automatic backlight adjustment for indoor/outdoor visibility
- Built-in motion sensor (trigger switches, camera pan/tilt, telemetry callouts)
- 4GB onboard flash + microSD support
- Removable shoulder switch panels for personalized layouts
| Item | TX16S MK3 Radio Controller |
| Color | Black / Transparent Charcoal |
| Voltage Range | 6.6 – 8.4V DC |
| Working Current | 1.10A (at max RF output power) |
| Radio Firmware | EdgeTX (requires 3.0.0 or higher) |
| Built-in RF Module | ExpressLRS (2 × LR1121) |
| Frequency | ISM 2.4GHz and Sub-G 900MHz |
| Number of Channels | Up to 16ch |
| Gimbals | V6 Hall sensor gimbals (standard) |
| MicroSD Card Slot | Yes (card not included) |
| Internal Storage | Integrated 4GB onboard flash memory |
| Display | 5” IPS touchscreen (800 × 480) |
| Battery (not included) | 2 × 18650 Li-ion / 21700 5000mAh Li-ion / 2S 7.4V 6200mAh LiPo |
| Upgrade Method | USB / EdgeTX Companion PC software |
| Module Bay | JR-compatible module bay |
| Dimensions | 200 × 178 × 88mm |
| Weight | 813g (without battery) |










- 1 × TX16S MK3 Radio Controller
- 1 × TX16S MK3 Signature Carry Case
- 1 × 18650 Battery Tray
- 2 × Replacement Shoulder Panels
- 1 × Type-C Cable
- 1 × Screen Protector
- 1 × 1.5mm Hex Wrench
- 4 × Low Tension Gimbal Springs
- 2 × Gimbal Stick Set Screws
- 1 × Nylon Neck Strap (Lanyard)
- 1 × RadioMaster Sticker Set
- 1 × TX16S MK3 Manual
- 1 × Inventory Card



