SainSmart WiFi Shield V2.0 for Arduino, 802.11b Wi-Fi Certified, WEP (64-bit and 128-bit), WPA/WPA2 (TKIP and AES) PSK 802.11b Wi-Fi certified: 1Mbps and 2Mbps throughput speeds Supports both infrastructure (BSS) and ad hoc (IBSS) wireless networks Ability to create secured and unsecured networks: WEP (64-bit and 128-bit), WPA/WPA2 (TKIP and AES) PSK Low power usage: Sleep mode: 250uA, Transmit: 230mA, Receive: 85mA This is the shield you need to get Wi-Fi connectivity to your Arduino-based project! This shield provides 802.11b connectivity and is a direct drop-on plug-and-play solution to your Arduino UNO.