Dell is a manufacturer with strong technical strength. The wireless network cards it produces have always been good. One of the network cards: Dell Wireless 5550 HSPA+ Mini-Card Device Management (COM7), has been recognized by many consumers, It is compatible with most operating systems and can work normally even in the latest operating systems, This network card also does a good job in terms of security. When it is connected to the router, it uses encryption algorithms to encrypt data by default, allowing you to browse information online with more confidence, The original intention of Dell manufacturer to design this wireless network card is for those who have high requirements for network speed. Dell Wireless 5550 HSPA+ Mini-Card Device Management (COM7) can not only work well by itself, but also can be combined with wireless network cards of the same model to form a parallel working mode, so as to increase the bandwidth of the network, which can speed up the network data transmission speed, It is made of a multi-layer PCB board, which can shield most of the external electronic interference, and its stability is very high. Even if there is a wall, it can receive most of the signal from the router, If your network card does not work normally, please check whether its driver is installed correctly, because this network card will not break easily.