GitHub - theRandomBit/trb-at90usb: Code examples for the Atmel AVR AT90USB family of microcontrollers. These correspond to a series of articles published on "The Random Bit" blog.
AT90USB1286 | Microchip Technology
AT90USB Plug
AT90USBKEY2 Microchip Technology | Development Boards, Kits, Programmers | DigiKey
1 PC) ATSTK525 ATMEL KIT Compatible with Starter for AT90USB: Amazon.com: Industrial & Scientific