HGLRC Specter F405 Flight Controller, STM32F405, Built-in OSD

HGLRC's Specter line targets builders wanting a dependable, full-featured F405-class flight controller without stepping up to the newer and pricier F7/H7 processor generation, and the Specter F405 delivers exactly that: a 32-bit STM32F405 ARM Cortex-M4 processor paired with the well-proven MPU6000 gyro, a combination that's been a reliable workhorse across countless FPV builds for years.

Onboard OSD runs through the AT7456E chip, overlaying flight telemetry directly onto the FPV video feed without needing a separate OSD module wired into the build. Blackbox flight-data logging is handled through 16MB of onboard storage - built directly into the board rather than requiring a microSD card, simplifying both the physical build and the post-flight data retrieval workflow since there's no card to insert, remove, or potentially lose.

Receiver protocol support covers SBUS, PPM, and DSMX, giving compatibility across the major receiver protocol families a builder might already have on hand from previous builds, rather than locking into just one. Power delivery includes a 10V@2A BEC alongside a separate 5V rail, covering both standard 5V peripherals and higher-voltage accessories like certain VTXs or LED strips that call for the extra headroom a 10V rail provides. The board targets Betaflight's SPEDIXF405 configuration profile.

At a lightweight 7.2 grams, the board adds minimal mass to a build's total weight, and it ships with softmount hardware and a cable set included, covering both the vibration-isolation mounting step and the basic wiring harness needed to get started. Builders wanting a dependable F405-class flight controller with onboard OSD and generous blackbox storage, from an established FPV brand, will find the Specter F405 a solid, well-equipped choice for a 2-6S build.