1. Pay attention to the interface configuration of the 4G wireless router
. The most common wireless router product in the market is four LAN interfaces plus a WAN interface configuration. If the indoor wired host does not exceed the LAN interface, this configuration is sufficient to meet the user's need, and if more LAN interfaces are needed with the WAN interface, the product needs to be replaced. Therefore, when choosing a wireless router, users should first pay attention to the configuration of LAN interface and WAN interface. 2. Pay attention to the wireless rate of the 4G wireless router. Because the speed of 4G wireless routers can range from tens to hundreds of millions. Generally speaking, the faster the speed is, the better the performance of wireless router will be, but its cost will also increase correspondingly. At the same time, the rate of household 4G wireless router can meet the needs of users at around 300 trillion. If the rate is too high while the rate of its own wireless card is not compatible, there is no need to buy it. 3. Pay attention to the wired rate of the 4G wireless router. Most of the electronic cards of the electronic products can integrate Gigabit Ethernet cards, while the switch chips of broadband routers can only support hundreds of megabytes of bandwidth. Therefore, connecting to the LAN of a router will transmit large data, and the the speed of the router itself will influence its rate. 4. Pay attention to the quality of the wireless signal. The wireless signal quality of the wireless router is also an important indicator of its performance. If the signal quality is good, it will not produce the phenomenon of large attenuation, frequent interruption or unstable signal connection. This can be judged from the number of antennas in the wireless router, and it will be better if we can analyze its wireless chip construction. 5. Pay attention to the USB requirements of the wireless router. The wireless router with USB interface on the market supports 3G network, and high-end router products can also support offline downloading. If users need to purchase this type of routers, they can bring their own 3G wireless network cards and connect them to the USB interface of the wireless router to test whether they can be used. At the same time, if USB needs to connect the hard disk, users also needs to pay attention to the power supply size of the USB interface.