Dash Link is a feature that lets you connect your phone or tablet to your computer and control it from one keyboard and mouse

Dash Link is a cross-device control feature built into some operating systems and third-party software that lets you use a single keyboard and mouse to work across multiple screens at once. Instead of switching between devices, you move your cursor from one screen to another as if they were all part of the same workspace. The feature works best when your devices are on the same network and positioned logically — for example, your laptop screen on the left and your tablet on the right.

The exact name and availability of this feature varies by device and software. Apple calls a similar feature Universal Control on Mac and iPad. Microsoft has Mouse without Borders for Windows. Some third-party apps like Synergy and Barrier offer the same capability across different operating systems. If you have heard the term "Dash Link" specifically, it may refer to a feature in a particular app or device ecosystem you are using.

Key Takeaways

  • Dash Link-type features let you control multiple devices with one keyboard and mouse instead of switching between them.
  • Your devices need to be on the same Wi-Fi network and positioned logically on your screen for the feature to work smoothly.
  • Different companies use different names for this feature — Apple calls it Universal Control, Microsoft calls it Mouse without Borders, and other apps have their own versions.
  • You can usually drag files and copy text between devices when this feature is turned on, not just move your cursor.

How the cursor movement works

When you move your mouse cursor to the edge of one screen, it does not stop at the edge — it continues onto the next device's screen. This works because the devices are communicating with each other over your network. Your computer knows where your other devices are positioned and passes control of the cursor to whichever device you are moving toward.

The positioning matters. If you tell your system that your tablet is to the right of your laptop, moving your cursor off the right edge of the laptop screen will move it onto the left edge of the tablet screen. If you set it up wrong, the cursor will not go where you expect, and you will need to adjust the positioning in your settings.

What you can do beyond moving the cursor

Most Dash Link-type features let you do more than just move the cursor. You can usually copy text or images on one device and paste them on another without using a cloud service or email. You can also drag files from one screen to another — for example, dragging a photo from your tablet directly into a folder on your laptop.

Keyboard input follows the cursor. Whichever device your cursor is on is the one that receives your keystrokes. This means you can type an email on your tablet using your laptop's keyboard, or write a document on your computer while referencing something on your phone — all without picking up a second input device.

Setting up Dash Link or similar features

The setup process depends on which feature you are using. If you are using Apple's Universal Control, both devices need to be signed into the same iCloud account, have Bluetooth and Wi-Fi turned on, and be within about 10 feet of each other. You may need to enable the feature in System Settings on each device.

For Microsoft's Mouse without Borders, you download the software on each Windows computer you want to connect, then pair them using a security code. Third-party apps like Synergy require you to designate one device as the server (the one with the keyboard and mouse) and the others as clients, then configure the layout of your screens.

After setup, the devices should connect automatically when they are on the same network. If they do not, check that both devices are awake, connected to Wi-Fi, and that the feature is turned on in settings. Restarting the software or the devices themselves often fixes connection problems.

When Dash Link features work best

These features work most smoothly when your devices are close together and on a strong, stable Wi-Fi network. If your network is slow or drops frequently, the cursor may lag or the connection may drop. Devices that are far apart or on different networks may not connect at all.

The feature also works better when you are using devices from the same company. Apple's Universal Control works seamlessly between Macs and iPads because they are designed to work together. Mixing devices from different manufacturers — for example, a Mac and a Windows computer — usually requires third-party software and may have more limitations.

Troubleshooting common problems

If your cursor is not moving between devices, first check that both are on the same Wi-Fi network and that the feature is turned on in settings. Restart both devices and try again. If that does not work, sign out and back into your account on both devices, or uninstall and reinstall the software.

If the cursor moves between devices but lags or feels slow, your network may be the problem. Move closer to your router, or check whether other devices are using a lot of bandwidth. If you are using third-party software, check the app settings to see if there is a performance or latency option you can adjust.

If you can move the cursor but cannot copy or drag files between devices, the feature may not be fully set up. Check that both devices are signed into the same account and that file sharing is turned on in your settings. Some networks block this kind of communication, so if you are on a work or school network, ask your IT department whether it is allowed.

Frequently Asked Questions

Do I need to buy anything to use Dash Link or similar features?

Apple's Universal Control and Microsoft's Mouse without Borders are free and come with your device or operating system. Third-party apps like Synergy have free versions with basic features and paid versions with more options. Check what you already have before buying anything.

Can I use this feature on my phone?

It depends on the feature and your phone's operating system. Apple's Universal Control works with iPad but not iPhone. Some third-party apps support Android phones, but the experience is usually better on tablets because of the larger screen. Check the app's requirements before downloading.

What if my devices keep disconnecting?

Disconnections usually mean a network problem or that one of your devices went to sleep. Check your Wi-Fi connection, move closer to your router, and adjust your device's sleep settings so it stays awake while you are using it. If you are using third-party software, restart the app on both devices.

Can I use this feature on a public Wi-Fi network?

It is possible but not recommended. Public networks are less secure, and your devices may not connect reliably. For best results, use your home or work network. If you must use public Wi-Fi, check that the software you are using encrypts your connection.

Does using this feature drain my battery faster?

It uses some battery because your devices are communicating over Wi-Fi and Bluetooth, but the drain is usually small. If you notice your battery draining quickly, turn off the feature when you are not using it, or check whether your Wi-Fi or Bluetooth is set to high power mode.