Hello guys! Im making some research to found the most strong bgn and 11a wireless usb adapters (with external antenna capable). I found it: 11gbn (2,4ghz) www alfa com tw/products_show.php?pc=34&ps=8 (up to 4000mw or 4W) 11a (ghz) nothing good. 11abgn (dual band) www alfa com tw products_show.php?pc=67&ps=23 (up to 2000mw or 2W) Any ideas for other adapters? Thanks!