cFosSpeed is a network controller, that is united to the existing connections to Internet. Next, it optimizes the data transfer by means of Traffic Shaping.Traffic Shaping is a method to optimize the traffic of Internet. This allows the maximum speed while minimum Ping guarantees. You can use cFosSpeed with router and/or a modem DSL or cable-modem. You also can use cFosSpeed with other types of access to Internet, that is to say. whenever you already have an existing Internet connection.cFosSpeed supports an ample variety of connections, like DSL, cable, ISDN, UMTS, etc