Atheros AR5B91 Wireless Network Adapter is a network card launched by Atheros manufacturer. Many computer manufacturers integrate this network card into the whole product, 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, If you often buy things on the Internet, it is best to use Atheros AR5B91 Wireless Network Adapter as your wireless network card, because it can automatically encrypt your data before transmitting it to the target serverIf you plan to use the computer for a long time, you can consider using this network card. Atheros AR5B91 Wireless Network Adapter has a very small heat generation and good stability. In addition, it also supports the sleep function. When the network is not busy, the chip automatically reduces the work frequency and save power, If you are particularly concerned about compatibility, this network card is a good choice because it uses a standard PC interface and can be connected to most motherboards, so you don’t have to worry about being unable to use this network card, Finally, please install the correct driver for it, so that it can exert its maximum performance.