Banana Pi BPI-M64 is a 64-bit quad-core mini single board computer. It features 2GB of RAM and 8GB eMMC. It also has onboard WiFi and BT. On the ports side, the BPI-M64 has 2 USB A 2.0 ports, 1 USB OTG port, 1 HDMI port, 1 audio jack, and lastly a DC power port. The processor is pin-to-pin comptialbe with R18, so it comes with two versions:M64 and M64-R18