Wireless card and wireless card seem to be the most confusing wireless network products for users, and price comparison is perhaps the easiest way to tell the two apart. Wireless network card has been mostly reduced to 200 yuan or even 100 yuan, and wireless network card often 1000 yuan or so. In fact, they are two completely different network products: wireless network card refers to a local area network card with wireless connection function, its function and function is the same as ordinary computer network card, is used to connect to the local area network. It's just a device that sends and receives signals and connects to the Internet only when it finds an exit. All wireless network cards can only be limited to the area where a wireless LAN has been deployed. Their access to the Internet depends on devices such as proxy servers or wireless routers connected to the WAN.