Update: Wednesday, Sept 1, 7AM: Teensy is out of stock. Backorders will likely be filled in early November. If you need a board soon, please consider the Teensy++. It is also out of stock, but more are in production now, so backorders should ship by mid-September.

Actual size is 1.2 by 0.7 inch

The Teensy USB Development Board is a complete USB-based microcontoller development system. Only a standard Mini-B USB cable (sold separately) is needed to connect to a PC or Macintosh.

This version has solder pads for all I/O signals. The Teensy is also available with the header pins to plug directly into a solderless breadboard.

All Teensy boards are shipped assembled and fully tested.