Which series of firewalls is newly launched in 2019?

What is the maximum switching capacity of S6720?

Huawei CE switches cover a complete range from high-end, high-density 100 GE core switches to low-end GE downlink fixed switches.
Which type of ecards do Huawei CE switches provide?

Which unit is used to describe the gain of antennas?

About AR550, which description is wrong?