We are Beijing RAK wireless Co.Ltd based in Beijing, China. We are member of TradeKey.com since March, 2013. Our business is related to Electrical & Electronics Supplies industry and we specifically deal in wifi module. Please find our product details below: SDIO WIFI Module SDIO WIFI Module on 2.4G.Support OS include Linux, Android, WinCE and WIn Mobile(Price will be higher for WIndows related OS) RS232 to 802.11b/g/n WIFI module RAK410 module is UART/SPI WIFI Module integrated the TCP/IP WLAN protocol.Support Station and AP Mode for easy configuration Thank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.