Although D-Link AirPremier DWL-G550 Wireless PCI Adapter is a relatively common network card, because of its good compatibility, it can be used in various operating systems, so many people have been using it, 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, It is compatible with the current mainstream wireless protocols: 802.11b and 802.11a, so you can use it to establish network connections with various wireless routers, Nowadays, more and more people are shopping online. Qualcomm Atheros manufacturers also take this into consideration, so they add encryption function to D-Link AirPremier DWL-G550 Wireless PCI Adapter, which can encrypt data before transmitting to external devices. However, this function is not enabled by default. The encryption function will be enabled only when you set it in the control interface of the driver, Qualcomm Atheros manufacturers have built it into a high-speed wireless network card. It can automatically compress data according to actual usage, so that your data can be quickly sent to the network. If you want to use this function, you must install the specific driver provided by the manufacturer, In general, this is a good wireless network card, worth having.