Broadcom BCM2837B0, Cortex-A53 (ARMv8) 64-bit SoC @ 1.4GHz 1GB LPDDR2 SDRAM 2.4GHz and 5GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2, BLE Gigabit Ethernet over USB 2.0 (maximum throughput 300 Mbps) Extended 40-pin GPIO header Full-size HDMI 4 USB 2.0 ports CSI camera port for connecting a Raspberry Pi camera DSI display port for connecting a Raspberry Pi touchscreen display 4-pole stereo output and composite video port Micro SD port for loading your operating system and storing data 5V/2.5A DC power input Power-over-Ethernet (PoE) support (requires separate PoE HAT)