product description : xtreme n notebook expresscard adapter standards : ieee 802.11n (draft), ieee 802.11g, ieee 802.11b host interface : expresscard/34 frequency range : 2.412ghz to 2.472ghz data rates : 802.11g : 6/9/12/18/24/36/48/54mbps 802.11b : 1/2/5.5/11mbps 802.11n : 30/60/90/120/180/240/270/300mbps emission schemes : dsss, ofdm transmit output power : 17dbm (typical) security : 64-128-bit wired equivalent privacy (wep), wi-fi protected access (wpa & wpa2) system req : computer with win xp/win 2000, cd-rom drive, 20mb hard disk space, expresscard slot dimensions : 112 x 33.4 x 8 mm * xtreme n technology enables and enhances hd video streaming, file sharing internet phone calling (voip) and web surfing * secures wireless network access using advanced wep, wpa/wpa2 encryption