Connecting a wireless or wired mouse to your Mac

A mouse connects to your Mac through either a cable plugged into a USB port, or wirelessly through Bluetooth. Most modern mice are wireless and pair once, then reconnect automatically whenever you turn them on. Wired mice work when ready when you plug them in — no setup needed. Wireless mice require a one-time pairing step through your Mac's settings, which takes about two minutes.

The method you use depends on what type of mouse you have. Check the bottom or side of your mouse for a power switch and a Bluetooth button, or look for a USB cable. If you see a small USB receiver (a tiny dongle about the size of a thumb drive), that's a different wireless standard that plugs directly into your Mac without using Bluetooth.

Key Takeaways

  • Wired mice plug into any USB port on your Mac and work when ready without any setup.
  • Bluetooth wireless mice pair through System Settings under Bluetooth, then reconnect on their own each time you turn them on.
  • USB receiver mice (with a small dongle) plug into a USB port and work right away, just like wired mice.
  • If your mouse stops responding, check that it has batteries, the power switch is on, and Bluetooth is turned on in your Mac's settings.

Connecting a wired mouse

Plug the USB cable into any available USB port on your Mac. The port is a small rectangular opening, usually on the sides of your laptop or the back of a desktop monitor. Push the connector straight in until it clicks — you should feel slight resistance. Your Mac recognizes the mouse when ready, and the cursor should move when you move the mouse.

If the cursor doesn't move, try a different USB port. Some ports on older Macs deliver less power than others. If you still have no response, restart your Mac. Wired mice rarely need troubleshooting beyond these two steps.

Connecting a Bluetooth wireless mouse

Turn on your mouse using the power switch on the bottom or side. Look for a small Bluetooth symbol (looks like a stylized "B" made of dots) on the mouse itself — press and hold that button for three to five seconds until a light on the mouse blinks or changes color. This puts the mouse into pairing mode, which lasts about two minutes.

On your Mac, click the Apple menu in the top-left corner, then select System Settings. Click Bluetooth in the left sidebar. Your mouse should appear in the list under "Available devices" within a few seconds. Click the mouse name, then click Connect. Once connected, the mouse appears under "My Devices" and will reconnect automatically whenever you turn it on.

If your mouse doesn't appear in the list, make sure Bluetooth is turned on — you'll see a toggle switch at the top of the Bluetooth settings window. If it's already on, try putting the mouse back into pairing mode by pressing the Bluetooth button again. If the mouse still doesn't appear after 30 seconds, restart your Mac and repeat the pairing steps.

Connecting a USB receiver mouse

Some wireless mice come with a small USB receiver instead of using Bluetooth. This receiver looks like a tiny stick or dongle and usually comes in the box with the mouse. Plug it into any USB port on your Mac — the same ports you would use for a wired mouse.

The mouse should work when ready without any pairing steps. If it doesn't, check that the mouse has fresh batteries and the power switch is on. You can usually store the receiver in a small compartment on the bottom of the mouse when you're not using it, or keep it in your bag.

What to do if your mouse stops working

For a wired mouse, check that the cable is fully plugged into the USB port. Try unplugging it and plugging it into a different port. If the cursor still doesn't move, restart your Mac. Wired mice have no batteries or wireless connection to troubleshoot, so a restart usually solves the problem.

For a wireless mouse, first check that it has batteries and the power switch is on. Look at the bottom of the mouse — if there's a battery compartment, open it and make sure the batteries are fresh and inserted correctly. Next, check that Bluetooth is turned on in System Settings. If Bluetooth is off, click the toggle to turn it on. If your mouse was previously connected, it should reconnect within a few seconds.

If the mouse still doesn't work, try putting it back into pairing mode by pressing the Bluetooth button for three to five seconds, then go back to System Settings and click Connect again. If you've paired the mouse before and it appears under "My Devices" but won't connect, click the information icon next to the mouse name and select "Forget This Device," then pair it again from scratch.

Understanding mouse ports and compatibility

All modern Macs have USB ports that work with any standard mouse. Older Macs may have different port types — if your Mac has USB-C ports (smaller, oval-shaped), you may need a USB-C to USB-A adapter to use an older wired mouse. These adapters are inexpensive and widely available.

Bluetooth works on all Macs from the last 15 years, so any Bluetooth mouse will pair with your Mac. USB receiver mice work on any Mac with a USB port. The only incompatibility you might encounter is if you're using a very old mouse designed for Windows, but even then, most mice work fine on Mac — they just may not have all their extra buttons programmed.

Frequently Asked Questions

Can I use multiple mice on one Mac?

Yes. You can pair several Bluetooth mice to your Mac and switch between them by turning one off and turning another on. Only one mouse works at a time, but you can have as many paired as you want. This is useful if you have a mouse for your desk and a portable one for travel.

Why does my wireless mouse keep disconnecting?

Check that the mouse has fresh batteries — low batteries are the most common cause. If batteries are fine, move the mouse closer to your Mac, as Bluetooth has a range limit of about 30 feet. If the problem continues, forget the mouse in Bluetooth settings and pair it again. Interference from other wireless devices can also cause disconnections, though this is rare.

Do I need to charge a wireless mouse?

Most wireless mice use replaceable batteries (usually AA or AAA), not rechargeable ones. Some newer mice have built-in rechargeable batteries and come with a USB charging cable. Check your mouse manual or the box it came in to see which type you have.

What if my Mac doesn't have a USB port?

Newer Macs with only USB-C ports can still use wired and wireless mice. For a wired mouse, you'll need a USB-A to USB-C adapter. Bluetooth mice work without any adapter — just pair them normally through System Settings.

Can I use a mouse designed for Windows on a Mac?

Yes. Most mice work on both Mac and Windows because they follow the same basic standards. The mouse will move the cursor and click normally. Some mice have extra buttons programmed for Windows features that won't work on Mac, but the basic mouse functions always work.