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Teensy (ATmega32u4 USB dev board) 2.0 [ATmega32u4] : ID 199 : $16.00 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: Jualyue 2.0 USB Development Keyboard Teensy 2.0 USB Keyboard Teensy 2.0 USB Avr Board, 2.0 USB Development Board, Teensy 2.0 USB Board, Green : Electronics
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