t’s still very much based on ODROID-C1 with Amlogic S805 processor(quad core Cortex-A5 ), 1GB RAM, and an eMMC sockets, but Hardkernel made the following improvements:

    HDMI connector change to Type-A from Type-D (micro HDMI).
    Improved SD card compatibility
    CEC function whether the RTC backup battery is installed or not
    ODROID-C1+ can be powered from the USB OTG port as well as DC-Jack
    I2S signals exposed for external audio DAC