# Radio Hardware Specifications for EdgeTX

The radio hardware specifications — covering supported targets, MCU types, flash and RAM sizes, and peripheral availability — are maintained on the EdgeTX website:

**[Radio Hardware Specifications for EdgeTX](https://edgetx.org/Radio-hardware-specifications-for-EdgeTX/)**

The table on that page includes, for each supported radio, details such as:

- **MCU** — processor model and clock speed
- **Flash** — total flash memory available and amount used by EdgeTX
- **RAM** — total SRAM and CCM RAM
- **Internal module** — RF protocol of the built-in module (if any)
- **External module bay** — whether a JR-style external module bay is present
- **SD card** — whether an SD card slot is present
- **Audio** — speaker and/or audio jack availability
- **USB** — USB connectivity type
- **Bluetooth** — whether Bluetooth is present
- **GPS** — whether an internal GPS module is present
- **Color display** — whether the radio has a color screen