USB port types and names
How To Use Crossover Mac
USB (Universal Serial Bus) is an industry standard for connecting computers and other devices. It's available with many types of ports, and each type has a unique shape. On Mac, USB is available with these ports, depending on your Mac model:
- Plug the device directly into your Mac instead of a USB hub or other device, and if necessary test with a different USB port on your Mac or device. Some devices need their own software, such as drivers or firmware. Others work without additional software.
- A glaring problem in using CrossOver is that it is COMPLETELY INCOMPATIBLE WITH USB DEVICES. It won't recognize a programmable keypad. It won't recognize scanners. And this is maddening. Sure, this may be an enormous problem that the Wine Community has worked on for years but has been unsuccessful. But USB Compatibility is an expectation.
- Hi all, I purchased a new Macbook air 2020 with M1 processor. The computer does not recognise USB bootable drives. I start it wiht a continuous press on the power button and cycle through startup options, but do not see any of the bootable USB that usually work on my imac. To be sure I tested a linux install USB, a Window as well as High Sierra and Mojave.
CrossOver can't connect directly to hardware ports or devices on your computer. This can cause problems if the Windows program you're trying to use needs to communicate with a USB device. Connecting a USB device (Crossover 17x) New Security Feature on Catalina: How to Grant Access Running CrossOver 19 with Antivirus Software (Bitdefender, Avast, AVG, etc) Other Questions How to get to the files in a bottle (C: drive) Where is my Downloads folder? Reset CrossOver's installer cache Navigating a Windows file dialog.
Type USB-A ports are commonly called USB, USB 2, or USB 3 ports, depending on the USB specification they support. They aren't reversible, so a USB-A connector plugs into the port only when oriented correctly.
Type USB-C ports are available on Mac as standard USB-C ports, Thunderbolt 3 ports, and Thunderbolt / USB 4 ports. They all look the same, and the connector plugs into the port in either orientation.
Learn more about identifying the ports on your Mac, as well as the adapters and cables you can use to connect older devices to type USB-C ports.
USB specifications are important primarily when you want the most speed and power for your USB device, or your device needs more power or is using too much power. Every USB port supports a particular USB specification, which determines the port's maximum>USB specifications on MacData transferPower deliveryUSB 4Up to 10 GbpsUp to 15W at 5VUSB 3.1 Gen 2
Also known as USB 3.2 Gen 2
Up to 10 GbpsUp to 15W at 5VUSB 3.1 Gen 1
Also known as USB 3.2 Gen 1 or USB 3
Up to 5 GbpsUp to 900 mA at 5VUSB 2.0
Up to 480 MbpsUp to 500 mA at 5VUSB 1.1
Up to 12 MbpsUp to 500 mA at 5V
To learn which specification is supported by a type USB-A or type USB-C port on your Mac model:
- Choose Apple menu > About This Mac, click Support, then click Specifications.
- Check the System Information app for more details, including about USB devices connected to USB ports on your Mac. Select USB in the sidebar, then select a USB bus on the right.
Get the best performance from your USB devices
USB specifications all work with each other, but speed and power are limited by the cable or device that uses the earliest specification. For example, if you connect a USB 3 device to USB 2 port, your device is limited to USB 2 speeds, and it can't draw more power from the port than can be delivered over USB 2. In other words, to get the best performance, make sure that the USB port on your Mac and the USB cable to your device meet or exceed the USB specification of the device itself.
Crossover Mac Usb Devices
If your Mac doesn't recognize a USB device after you plug it into your Mac:
- Check all connections: Unplug the device from your Mac, then plug it back in, and make sure that all cables and adapters are securely connected at both ends. Test with another cable or adapter, if available.
- Plug the device directly into your Mac instead of a USB hub or other device, and if necessary test with a different USB port on your Mac or device.
- Some devices need their own software, such as drivers or firmware. Others work without additional software. Check with the maker of your device, and install all available Apple software updates as well.
- If your device came with an AC power adapter, use it. Some devices can be powered by the USB port on your Mac. Others need more power than your Mac can provide.
- Restart your Mac.
- USB 3 devices can create wireless interference that affects Wi-Fi and Bluetooth devices. Learn how to resolve Wi-Fi and Bluetooth issues caused by wireless interference.
- Mac notebook computers with USB-C, Thunderbolt 3, or Thunderbolt / USB 4 can charge over that port using a compatible USB-C power adapter and cable.
USB devices attached to the same hub are very slow or completely unresponsive.
While multiple devices that are attached to the same hub are going into selective suspend, one of the devices on the hub can receive a wake request. If this happens before the suspend request has completed, the devices become unstable.
Try these methods to work around this problem.
Method 1 Disable and enable the USB root hub
Use Device Manager to disable and re-enable the USB root. This lets the controllers recover the USB port from its unresponsive condition.
To disable and re-enable the USB root, follow these steps:
Click Start, and then click Run.
In the Open box, type devmgmt.msc, and then click OK. Device Manager opens.
Expand Universal Serial Bus controllers.
Note You might have to scroll down the list to find this item.
Right-click the affected USB Root Hub, and then click Uninstall to remove it.
Shadow defender serial key. Restart the computer. After the computer starts, Windows will automatically scan for hardware changes and reinstall all the USB root hubs that you uninstalled.
After the computer restarts, check whether the problem is resolved. If this method resolved the problem, you are finished. If this method did not resolve the problem, go to Method 2.
Method 2 Restart the computer
Try restarting the computer. After the computer has restarted, check whether the problem is resolved.
If restarting the computer resolved the problem, you are finished. If this method did not resolve the problem, go to Method 3.
Method 3 Disable Selective Suspend feature
If the first two methods did not work for you, you can disable the Selective Suspend feature. However, be aware that when the Selective Suspend feature is disabled, all USB host controller drivers (and therefore all USB ports and connected USB devices) in the system are affected. Therefore, your computer cannot suspend any USB devices that are connected to it, and the USB devices can continue to use power while connected to the computer. Additionally, the Allow the computer to turn off this device to save power check box does not appear on the Power Management tab for the USB root hub.
You can disable the USB Selective Suspend feature by editing the registry. The USB device may become unresponsive because of a race condition in the Selective Suspend feature. The Selective Suspend feature suspends the USB device to efficiently maintain battery power by enabling the computer to turn off the USB device. However, sometimes this feature may not correctly wake up the USB device. Therefore, the USB device is unresponsive when you try to use it.
You might want to disable this feature for server products where power management is not important or required.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in WindowsTo disable the Selective Suspend feature, follow these steps:
Click Start, and then click Run.
Type regedit, and then click OK. Registry Editor opens.
Locate and then click the following registry subkey: HKEY_LOCAL_MACHINESystemCurrentControlSetServicesUSB
If the DisableSelectiveSuspend registry entry is present, double-click it. If it is not present, create the entry. To create the entry, follow these steps:
On the Edit menu, point to New, and then click DWORD.
Type DisableSelectiveSuspend, and then press ENTER.
On the Edit menu, click Modify.
In the Value data field, type 1 to disable the Selective Suspend feature, and then click OK.
Exit Registry Editor.
Microsoft has confirmed that this is a problem in the USB subsystem on Windows XP SP2 and SP3.