FPV Drone Parts
Build-it-yourself FPV drone components — flight controllers, ESCs, digital video transmitters, radio transmitters, motors, frames, and ready-to-fly kits.. 8 products compared with full specifications and recommendations.
Flight Controllers & Stacks
F405/F722 flight controller boards and all-in-one FC+ESC stacks
Radio Transmitters
ELRS / CRSF radio TX handsets — RadioMaster, BetaFPV, FrSky
RadioMaster Pocket
STM32F407- Protocol
- ExpressLRS 2.4 GHz (built-in module) + CRSF; supports external modules
- Output Power
- ExpressLRS up to 250 mW internal (100 mW typical)
- Channels
- 16 channels via CRSF; 12 channels stick + AUX
RadioMaster Boxer
STM32F407- Protocol
- ExpressLRS 2.4 GHz (built-in) + CRSF + 4-in-1 multi-protocol module on some variants
- Output Power
- ExpressLRS up to 250 mW internal; external module via JR bay up to 1W
- Channels
- 16 channels via CRSF; 12 channels stick + AUX
Video Transmitters
Digital HD VTX systems — DJI O3/O4, Walksnail Avatar, HDZero
DJI O4 Air Unit Pro
DJI proprietary SoC- Video System
- DJI O4 (4th-gen digital HD, 5.8 GHz)
- Output Power
- Up to 1.6W (region-locked: 25 mW CE, 700 mW FCC, 1.6W when unlocked)
- Latency
- ~20 ms end-to-end (claimed) with Goggles 3 / Integra
Walksnail Avatar HD Pro Kit V2
Walksnail proprietary SoC- Video System
- Walksnail Avatar HD (digital, 5.8 GHz)
- Output Power
- Up to 1.2W (region-locked: 25 mW CE, 1.2W FCC)
- Latency
- ~22 ms end-to-end (race mode at lower resolution)
HDZero Race V3 VTX
HDZero proprietary SoC- Video System
- HDZero (low-latency digital, 5.8 GHz)
- Output Power
- Switchable 25 / 200 / 500 / 1000 mW
- Latency
- ~8 ms glass-to-glass — lowest in the digital VTX category
Ready-to-Fly Kits
Complete kits with radio, goggles, and drone — BetaFPV Cetus, Emax Tinyhawk
Motors
Brushless motors — T-Motor, Emax, iFlight in common sizes (1404, 1606, 2207)