ASUS WL-167g V2 - USB Wireless Adapter - 802.11b/g Easy to carry - 2.95 x .79 x .35 in Lowest CPU utilization design leaves system resources available for other functions Enhanced Security: 64/128 bit WEP support; Work with Windows XP SP1 security WPA functions Product Dimensions: 7.3 x 5.5 x 1.8 inches ; 1.4 ounces ;802.11b/g