Buy.com Rebate: Get the Actiontec GT724R DSL Modem Router - GS503AD3B-01 for $63.24 - $15 rebate Offer valid from 2/15 to 2/28 = $48.24. Includes shipping. Actiontec Electronics introduces its latest powerhouseDSL Modem, the GT724R. Building on years ofDSL modem design and manufacturing, theDSL Modem is actually two products in one sleek package,a full-rate ADSL modem, and a 4-port switch.