All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
WiFi shield that features the FCC-certified ATWINC1500 module from Atmel.
The Adafruit ATWINC1500 WiFi Shield uses SPI to communicate plus some GPIO for control, so with about 6 wires, you can get your wired up and ready to go
Includes micro SD card socket
The shield comes with level shifting on all the input pins so you can use it with 3V or 5V logic boards. A 3.3V voltage regulator that can handle the 300mA spikes lets you power from 3-5.5VDC
Product Dimensions: 68.0mm x 53.0mm x 4.7mm / 2.7" x 2.1" x 0.2"