A line of operating system-independent, USB hardware modem modules feature -40°C to 85°C operating temperature. The modules have received global telecom and safety agency approvals, including IEC60601-1 (medical compliance). Available in module only (V92HU) and module with RJ-11 jack and USB type B receptacle installed (V92MB-U) configurations, these modems process data using their own firmware and run completely independent of the host computer's operating system. These modems are CDC-compliant and are supported by Microsoft CDC modem drivers and Linux CDC-ACM drivers. They work with Linux, Windows, and Mac operating systems.