The AT-AR441S Annex B ADSL Security Router is a competitively priced, business-class, secure ADSL router. This desktop, broadband router allows businesses to take advantage of cost effective DSL connections without compromising on bandwidth, throughput, features, or security. The AT-AR441S has been designed with the needs of the branch office or small to medium business in mind and comes with dying gasp and the WAN back-up features businesses expect.