VGA connector MIC input (No welding Microphones) Audio Headphone Output Audio LineIN RTL8188EU WIFI Modules USB-OTG Port Power Indicator LED USB to UART, CP2102 WIFI Antenna USB Debug port EXT connector IR Receiver - not soldered Ext Port - Camera CIF port USB 2.0 Host IC - FE1.1S Power button Power Supply - 5V/2A RJ45 10/100M Ethernet 2 x USB 2.0 Host port CR1220 RTC Battery Holder 2 x USB 2.0 Host port HDMI A Type socket mrcro SD card (TF card)socket SATA socket TV In TV Out VOL + Key, VOL - Key, ESE & Uboot Key, (from left to right) LCD RGB Interface LCD LVDS Interface - not soldered 1GB DDR3 SDRAM & 2GB DDR3 SDRAM TX indicator LED use for debug Power Management Unit - AXP209 8GB Nand Flash & eMMC FLASH Power Indicator LED Allwinner A20 ARM Cortex A7 Dual-Core @ 1Ghz + Mali-400 GPU 10/100M Ethernet PHY - LAN8710A J1, expansion 50x2 pin 1.27MM J3, expansion 20x2 pin 1.27MM J2, expansion 50x2 pin 1.27MM == Swiss Army Knife