SMC 2.4GHz Wireless-N Adapter USB Physical: USB 2.0 Modes: Infrastructure and Ad-hoc; Soft AP (Windows only) Security Features: WEP 64/128-bit encryption; WPA/WPA2-PSK (Pre-shared Key, AES, TKIP); WPA/WPA2 Enterprise (IEEE 802.1x) Output Power (typical): IEEE 802.11n: 16 + /-1dBm; IEEE 802.11g: 16 + /-1dBm; IEEE 802.11b: 18 +/-1dBm OS Compatibility: Microsoft Windows 2000, XP, Vista, Windows 7; MacOS v10.3, 10.4, 10.5; Linux