The A000058 is a Arduino WiFi shield with integrated antenna. It is based on the HDG104 wireless LAN 802.11b/g system in package. An Atmega 32UC3 provides a network (IP) stack capable of both TCP and UDP. The Arduino WiFi shield connects Arduino board to the internet wirelessly. Connect it to wireless network by following a few simple instructions to start controlling the world through the internet. The WiFi shield communicates with Arduino board using the SPI bus (through the ICSP header), so is compatible with any of the boards that have this type of bus. This version of WiFi shield have an integrated antenna on the PCB. The shield can connect to encrypted networks that use either WPA2 Personal or WEP encryption. It can also connect to open networks. There is an on board mini USB connector. This is not for programming an attached Arduino, it is for updating the Atmega 32U using the Atmel DFU protocol.