Spectec SDW-821 WiFi 802.11b/802.11g 54Mbps SD SDIO Wireless LAN Network Card Add 802.11g or 802.11b WiFi to a PDA Works for Windows Mobile 2003/5.0 Windows CE 4.2/5.0 Supports 40-128 bit WEP, TKIP, WPA 54Mbps data rate supported UltraLow power consumption