Hi, friend.
The EchoLife EG8141A5 is a routing-type ONT in the Huawei all-optical access solution. It uses GPON technology to implement ultra-broadband access for users.
In the following figure, you can see the specifications of the GPON port:

You can also obtain the Ethernet port information of the EG8141A5 by referring to the following figure:

The speed supported by the device is for reference only. The actual network speed depends on your carrier. Therefore, you can ask your carrier for the actual network speed or test the network speed on the PC.
Thanks.