Information

• How much RAM can I allocate for the virtual machine?
• What is the maximum CPU count for the virtual machine?
• How many USB devices can I use on the virtual machine's side?

CPU Limits

In Parallels Desktop for Mac Standard Edition the maximum number of CPUs you can give to the virtual machine is 4.

In Parallels Desktop for Mac Pro/Business Editions the maximum number of CPUs is 32.

To change the number of CPUs, open virtual machine's configuration window > Hardware > CPU & Memory and adjust the number using the drop-down menu.

NOTE: The number of available processors depends on how many real CPUs your Mac has.

RAM Limits

In Parallels Desktop for Mac Standard Edition you can allocate up to 8 GB.

In Parallels Desktop for Mac Pro/Business Editions you can allocate up to 128 GB.

To change the amount of memory, open virtual machine's configuration window > Hardware > CPU & Memory and set the required amount of RAM by entering a number manually or moving the slider.

NOTE: The number of RAM you can assign also depends on how much RAM your Mac has. The topic of RAM Management is covered here in detail.

USB Limits

In all Parallels Desktop for Mac Editions you can connect and use up to:

• 12 USB 3.0 devices;
• 15 USB 2.0 devices;
• 32 USB 1.1 devices.

You can connect and use up to 30 USB printers.

A more in-depth comparison of Standard and Pro Editions of Parallels Desktop for Mac is available here.