What is the use of both input and output devices? - Quora
How to Install a Modem: 11 Steps (with Pictures) - wikiHow
Módem router inalámbrico G+ MIMO
Mini UPS Battery Backup 10000mAH Uninterruptible Power Supply for WiFi, Router, Modem, Security Camera with Input AC 100V-240V Output USB 5V DC 9V/12V POE 24V/48V (5V-48V POE) - Walmart.com
Amazon.com: Mini UPS Battery Backup Uninterruptible Power Supply for Router, Modem, Security Camera, Built-in 10000mAh with Input DC/USB Output USB 5V DC 5V/9V/12V 2A : Electronics
COM9602: Iridium Short Burst Data (SBD) Modem Kit
SKE DC Mini UPS POE-431P Battery Backup Uninterrupted Power Supply Built-in 8800mAh for WiFi, Modem Router,CCTV, with Input 100V~240V AC Output Power 17W Output USB DC 5V/9V/12V POE 15V/24V UPS - Newegg.ca
What Is A Modem? What Does A Modem Do? - ScienceABC