Setting up your Mac or PC to use a 4G or 5G mobile broadband card and Ethernet at the same time is a very simple task. In fact, any computer running Windows 10+ or Mac OS 10+ can connect to any combination of available Internet connections. In most cases, setting up multiple Internet connections on your computer doesn’t even require any extra hardware.
If you’re trying to connect multiple Internet connections for faster speeds, note that your various connections must come from different Internet sources. For example, Wi-Fi and Ethernet networks that are connected to the same router cannot be combined for increased bandwidth using channel bonding applications like Speedify, because they both share the same upstream network.
Should you have a backup 4G, 5G, Starlink, or cable internet connection?
Yes — every internet connection goes down, including Starlink, which drops for ~34 minutes a day on average. A backup connection from a different provider means one outage never takes you fully offline. The most common options are a 4G/5G cellular hotspot, a cable or DSL line, or a second satellite dish.
4G/5G cellular
Works anywhere. Just a SIM or hotspot — no installation needed.
Learn more →Cable / DSL
Best for fixed locations. Different network, so outages rarely overlap.
Learn more →Second Starlink
Adds redundancy and throughput for remote sites or heavy usage.
Learn more →Speedify bonds any two connections into one — automatic failover, more speed, no dropped calls.
Try free →Speedify Feature · Pair & Share
Cellular sharing that works better than a mobile hotspot.
Speedify Feature · Pair & Share
Speedify Pair & Share: share cellular between your devices, both ways
Most hotspots give. Speedify's Pair & Share gives and takes. Two devices running Speedify pair up and each uses the other's cellular connection simultaneously, so you both get faster uploads, faster downloads, and a steadier connection. No extra hardware, no new data plans, no setup beyond a tap.
Learn how Speedify's Pair & Share works ›More speed
Every device you pair with adds its cellular to yours, and yours to theirs.
Stays connected
If a paired device drops out, Speedify keeps you online on the remaining links.
Always private
Every shared connection runs through AES-256 encryption. Your traffic is yours.
No new gear
Runs on devices already running Speedify, over your local network. Pair once, reconnects automatically.
Step 1: Connect Your Ethernet Cable
Find your PC or Mac’s Ethernet port and connect the Ethernet cable. If your computer doesn’t have a built-in Ethernet port, you can use a low-cost USB-to-Ethernet adapter.
Step 2: Connect Your 4G or 5G Mobile Broadband Card
Refer to your mobile broadband provider’s instructions to connect your mobile Internet device to your computer. If your device is a USB dongle and you’ve already installed the appropriate drivers on your computer, you can simply plug in your 4G or 5G card. For a mobile hotspot device, just connect to your computer’s Wi-Fi as you normally would.
Step 3: Combine Ethernet and 4G or 5G with Speedify
Now that you have both Ethernet and your 4G or 5G mobile broadband network connected to your computer simultaneously, you might want to combine both for faster and more reliable Internet. This is where Speedify comes in. Speedify is a cloud service for Mac & PC users that combines all the Internet connections available to your computer to create a single fast super-connection.
To get started with Speedify, simply download it here. Then, log into your Speedify trial using the email and password combination we emailed to you, and once Speedify is running, you’ll see both Ethernet and mobile broadband connections detected. That means you’re using both for their combined speed and reliability.
Get started with Speedify today!
With Speedify you can combine Wi-Fi, 4G / 5G cellular, Ethernet, Starlink and other satellites into one bonded super-connection to improve livestreaming, video calling, gaming, web browsing, and everything else you do online.
Speed
Stability
Security
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Alex Gizis and the Speedify engineers discuss and explain technology including Starlink satellites, Wi-Fi 7 routers, Apple networking features, fiber optics, broadband internet, 5G mobile networks, AI, networking protocols, and much more. Follow Speedify on YouTube, TikTok, Instagram, and LinkedIn!
Alex and the Speedify team are always exploring the latest in networking and security technology—like 5G, 6G, WiFi 7, laser and satellite internet—and sharing it in new discussion content across YouTube, TikTok, Instagram, and LinkedIn every week.
Got a tech question? Let's go deeper! Pop into Speedify Office Hours live every Wednesday at 10 AM Eastern. Speedify CEO Alex Gizis and our network engineers are standing by to break down your questions about networks, tech updates, and Speedify features.
