Realtek is a manufacturer with strong technical strength. The wireless network cards it produces have always been good. One of the network cards: Realtek RTL8187 Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter - Hotspot Shield Routing Miniport, has been recognized by many consumers, Thanks to the use of high-quality circuit boards and various high-quality components, it can work for a long time in various environments, even if it is minus 30°, it will not be affected in any way, and it can keep the network stable, Realtek 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 have many wireless routers around you, it is recommended that you use a network card that supports standard wireless protocols to establish a stable network connection with these routers. Realtek RTL8187 Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter - Hotspot Shield Routing Miniport supports the latest standard wireless protocols, Nowadays, more and more people are shopping online. Realtek manufacturers also take this into consideration, so they add encryption function to Realtek RTL8187 Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter - Hotspot Shield Routing Miniport, 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, In general, this is a good wireless network card, worth having.