Product UPC: 012303049310 Cisco Fax modem 56 Kbps K56Flex, V.90, V.92 2 analog port s for Cisco 1841 3G, 1841 ADSL2, 18XX, 1921 4 pair, 1921 ADSL2, 19XX, 28XX, 29XX, 38XX, 39XX
30 day warranty included at no charge. Extended warranties available. Contact your sales rep.