Although the Dell Wireless 5550 HSPA+ Mini-Card Network Adapter has been on the market for a long time, many people still use it because of its excellent working ability, Because it has a relatively large signal transmission power, the heat generation is also a bit large, but fortunately, it does not affect normal use. With the support of the latest operating system, the chip will automatically reduce the frequency according to the actual situation to reduce the heat generation, In terms of speed, the speed of Dell Wireless 5550 HSPA+ Mini-Card Network Adapter has reached the current mainstream level. It allows you to watch high-definition network videos smoothly, and it can process some simple network data packets by itself, disassemble the data packets into raw data and send them to the application layer. This will save a lot of CPU resources. But to realize this function, you must install the correct driver for it,Nowadays, more and more people are shopping online. Dell manufacturers also take this into consideration, so they add encryption function to Dell Wireless 5550 HSPA+ Mini-Card Network Adapter, 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, In general, this is a good wireless network card, worth having.