The Raven’s numerous input and output options provide easy-to-implement system communication and peripheral connectivity. The slightly larger physical size of the Raven over the previous EPUs accommodates several new I/O interfaces, including: USB 3.0 port, a second Gigabit Ethernet Interface, I2C interface, eight analog input lines, eight digital I/O lines, and an additional mini PCIe socket. The basic on-board features include: two Gigabit Ethernet interfaces with network boot capability, one USB 3.0 host port for high-speed devices, four USB 2.0 host ports for lower speed peripherals, an I2C port, eight 3.3 V General purpose input/output ports, three 8254 compatible 16-bit timers, eight programmable 12-bit Analog Inputs, and four RS232/422/485 multi-function serial ports.