HDZero Gamma 45A HD-Ready AIO

HDZero Gamma 45A HD-Ready AIO

25.525.5mm for 2.54in Digital FPV Builds (3-6s)

TheHDZero Gamma 45A HD-Ready AIOis a compact, digital-first all-in-one flight controller designed for2.54 inch FPV dronesusing the popular25.525.5mm Whoop / Toothpick mounting pattern.

Built around theSTM32G473 MCU, Gamma delivers strong processing headroom for modern Betaflight features while keeping builds clean, simple, and reliable.

Integrated ExpressLRS Receiver

Gamma includes abuilt-in serial ExpressLRS 2.4GHz receiver, eliminating the need for a separate RX. This reduces wiring, saves space, and removes one of the most frustrating steps in small digital builds.

Designed for Digital Video

Gamma is purpose-built for digital FPV systems. Astandard digital VTX plugand aprotected 8V / 3A high-power BECmake it easy to run modern digital transmitters, including HDZero, DJI, Walksnail, and OpenIPC. A secondary5V / 3A BECis available for LEDs and peripherals.

The analog OSD chip is intentionally removed to save space and optimize the board for digital-only setups, making Gamma an excellent match for compact digital stacks using VTX’s like theHDZero Whoop V2orHDZero Freestyle V2.

High-Performance 32-bit AM32 ESC

The onboard32-bit 4-in-1 AM32 ESCprovides clean, stable power delivery and improved transient response during rapid throttle changes. Each motor output supports45A continuous with 60A burst capability, helping reduce voltage spikes, brownouts, and component stress. Supports 3-6s batteries for high performance flying.

Builder-Friendly Layout

All motor and I/O pads arecastellated and edge-mounted, making soldering easier and improving serviceability in tight frames – you can even mount the AIO upside down and still access all of the IO pads. The layout is optimized for clean wiring and straightforward integration of additional peripherals such as GPS, LEDs, or buzzers.

Watch the product overview video

Key Features

• 25.525.5mm Whoop / Toothpick mounting pattern
• Optimized for 2.54 inch digital FPV builds
• STM32G473 MCU with ICM gyro
• Integrated serial ExpressLRS 2.4GHz receiver
• 45A continuous / 60A burst 32-bit AM32 4-in-1 ESC
• 8V / 3A protected BEC for digital VTXs
• 5V / 3A BEC for LEDs and peripherals
• Standard digital VTX plug
• Castellated edge pads for clean, easy soldering

At-a-Glance Specs

Included in the Box

• HDZero Gamma 45A HD-Ready AIO
• 1x ELRS T-sharp short antenna (40mm)
• 5x M2 Rubber Grommet(5.6mm)
• 1x XT30 cable with 330uF/35V capacitor (70mm)

Recommended Use

Ideal for2.54 inch digital FPV drones, including freestyle, racing, training, and drone soccer platforms.Not recommended for heavy 5-inch builds.

Notes

• Designed for digital video systems using a standard digital VTX plug and an 8V / 3A regulated rail.
• 5V rail is intended for peripherals (LEDs, etc.). Use appropriate protection if your wiring could be shorted.