Qualcomm Atheros is a manufacturer with strong technical strength. The wireless network cards it produces have always been good. One of the network cards: Qualcomm Atheros AR5BWB222 Wireless Network Adapter #3, has been recognized by many consumers, 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, 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, Nowadays, more and more people are shopping online. Qualcomm Atheros manufacturers also take this into consideration, so they add encryption function to Qualcomm Atheros AR5BWB222 Wireless Network Adapter #3, 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, It supports IEEE 802.11b/g/n/ac protocol, not only can connect to most routers, but also connect to other devices that support this protocol, such as mobile phones, wireless network cards, game consoles, etc, If your network card does not work normally, please check whether its driver is installed correctly, because this network card will not break easily.