cRIO-908x reconfigurable I/O (RIO) has Xilinx Spartan-6 FPGAs and optional Windows Embedded Standard 7 (WES7) OS configuration. The systems have two Gigabit Ethernet ports, an MXI Express port, four USB ports, RS-232 and RS-485 serial ports, as well as a CPU eXpansion Module (CXM).