If I have a router with a USB port in it, can I use a power bank to provide it with electricity if the power shut down? - Quora
TP-LINK TD-W9970 | TP-Link 300Mbps Wireless N USB VDSL/ADSL Modem Router
300Mbps Wireless N USB VDSL/ADSL Modem Router
TP-LINK TD-W9970 | TP-Link 300Mbps Wireless N USB VDSL/ADSL Modem Router
File:Linksys ADSL Modem AM300 ethernet, USB, and phone line ports.jpg - Wikipedia
Portable Usb To Rj45 Adapter Usb2.0 Female To Ethernet Rj45 Male Plug Adapter Connector Use For Adsl Modem - Pc Hardware Cables & Adapters - AliExpress
5V USB to 12V DC 5.5/2.1 Power Voltage Increase Adsl Modem Power Adapter Cable - AliExpress
TD-W9970 | 300Mbps Wireless N USB VDSL/ADSL Modem Router | TP-Link India
Comtrend AR-5220u ADSL2+ Router 4-Port Ethernet Modem USB 3.0 White 730113-001 | eBay