The router label on the bottom panel of the router (sometimes at the back of the router) lists the following information
MAC Address
Serial Number
Gateway login details (IP address, username & password)
Make/model
WiFi network name (SSID)
WiFi password (network key)
See below sample image
Article ID: 447
Created: April 9, 2024
Last Updated: July 24, 2024
Author: Annive Federicos [annive.federicos@spintel.net.au]
Online URL: https://articles.spintel.net.au/article/byo-hardware-identification-guide.html