AmbiCom WL54-SDIO. Connectivity technology: Wireless, Host interface: Secure Digital, Interface: WLAN. Data transfer rate (max): 54 Mbit/s. Networking standards: IEEE 802.11b, IEEE 802.11g, Frequency band: 2.412 - 2.484 GHz, Maximum operating distance: 300 m. Wireless LAN type: 802.11b, 802.11g, Maximum indoor range: 100 m, Maximum outdoor range: 300 m. Width: 24 mm, Depth: 40 mm, Height: 2.1 mm