Banana Pi is a single-board computer.  Banana Pi targets to be a cheap, small and flexible enough computer for daily life.  Built with ARM Cortex-A7 Dual-core CPU and Mali400MP2 GPU, and open source software, Banana Pi can serve as a platform to make lots of applications for different purposes. 

Pin Definitions of Extensible connector
Banana Pi has multiple extensible connectors for users to develop their own amazing projects and applications.   Most of common extension accessories Including LCD panel, touch screen, camera module, UART console and GPIO control pins are accessible from Banana Pi on-board connectors and headers.

Banana Pi Specification