ByteThief is essentially a Bus Pirate clone that adds the CAN protocol to the feature set. ByteThief will make use of and extend the ARM port of the Bus Pirate firmware. 

Quick Specs:

- STM32F446RET6 STM32 ARM Cortex M4 Microcontroller

- 3.3V DCDC regulator fed by USB port

- 2.54mm spaced shrouded connector

- cable adapters for interfacing with various hardware

- USB interface

- ARM Cortex Debug port