Datasheet

On Windows 7, by default, we install a single driver for most of Adafruit's boards, including the Feather 32u4, the
Feather M0, Feather M0, Express, Circuit Playground, Circuit Playground Express, Gemma M0, Trinket M0, Metro M0
Express. On Windows 10 that driver is not necessary (it's built in to Windows) and it will not be listed.
The Trinket / Pro Trinket / Gemma / USBtinyISP drivers are also installed by default.
You can also, optionally, install the Arduino Gemma (different than the Adafruit Gemma!), Huzzah and Metro 328
drivers.
Click Install to do the installin'.
Manual Driver Installation
If windows needs the driver files (inf/cat) for some reason you can get all the drivers in a zip by clicking below:
Adafruit Windows Drivers source (v2.0.0.0)
https://adafru.it/zel
Note that on Windows 10, support for many boards is built in. If you end up not checking any boxes, you don't
need to run the installer at all!
© Adafruit Industries https://learn.adafruit.com/introducing-pro-trinket Page 19 of 38