Seeedstudio Yun Shield / Processor: 400MHz, 24K MIPS / Flash: 16MBytes / RAM: 64MBytes / Power Input: 4.75v 23v via Arduino VIN pin / 10M/100M RJ45 connector / 150M WiFi 802.11 b/g/n Open source Linux (OpenWrt) inside Low power consumption Compatible with Arduino IDE 1.5.4 or later, user can program, debug or upload sketch to Arduino board via Arduino IDE. Managed by Web GUI, SSH via LAN or WiFi Software upgradable via network