Raspberry Pi 2 Model B Project Board, 1GB Ram, 900MHz Quad-Core Arm Cortex-A7 CPU, Replaced Raspberry Pi 1 Model B+ in February 2015 900MHz Quad-core ARM Cortex-A7 CPU, 1GB RAM 4 USB Ports, 40 GPIO Pins,Full HDMI Port, Ethernet Port Combined 3.5mm Audio Jack and Composite Video Camera Interface (CSI), Display Interface (DSI) Micro SD Card Slot, VideoCore IV 3D Graphics Core