Chip model is AT90USB1286, ARV microcontroller software development and learning the best experimental board, has been installed Bootloader program, you can directly download the application code through the common USB interface, very helpful for beginners. of use: teensy.exe can be downloaded directly from the Internet, no need to install the driver, direct erase, program, check. Do not need to buy another expensive burner. At the same time, you can use for IDE to install the Teensy development environment for use.Key Features:USB can be any type of deviceAVR processor, 16 MHzSingle pushbutton programmingEasy to use Teensy Loader applicationCompatible for Works with OS X, Linux & WindowsTiny size, perfect for many projectsColour: green + blackMaterial: metal + plasticSize: development board about 51x18mmPackage Contents:1 * Teensy 2.0 ++ USB AVR Development Board1 * LineOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.