"304 km (189 mi) high-speed data link from Sardinia to Tuscany, achieving data rates of up to 356.33 Mbps"<p>the ubnt community post has some more technical insights and pictures: <a href="http://community.ubnt.com/t5/airFiber-Stories/ICTP-and-CISAR-take-the-challenge-and-upgrade-with-AF5X-304km/cns-p/1608780" rel="nofollow">http://community.ubnt.com/t5/airFiber-Stories/ICTP-and-CISAR...</a>