Some require an external power source whilst other connect directly via a USB port. 
External Hard Disk DrivesThere are a variety of hard drives including those for external or internal use. External hard disk drives are portable devices which are generally compatible with all versions of Windows and Apple Mac operating systems.
MacOS, the operating system previously known as Mac OS X, is beautiful, stable, and typically attached to a $1000+ MacBook / iMac. If we want to run macOS on a Windows PC, without the very particular hardware required for Hackintosh, a Mac OS X virtual machine is the next best thing. We have a windows 7 physical computer and would be using VMware converter to do a P2V. Guest vm will be on ESXi 6.0 host. We have some 3rd party licensing softwares installed on this physical PC, which are tied to the NIC MAC address.
I imaged a old MacBook Air as part of an investigation using Tableau TD2u to E01-format.
From there I converted them to RAW using FTK Imager.
I then used the VboxManage-tool to convert the raw file to VDI and VMDK.
While booting it in VirtualBox it starts booting, but it hangs after the Kernel has panicked. I have told it to remain calm and breath but it does not seem to help.
Mac OS version:
Not yet set
Kernel version:
Darwin Kernel 10.0.0: Fri Jul 31 22:47:34 PDT 2009; root:xnu-1456.1.25~/RELEASE_1386
System model name: X10DAi (VirtualBox)
System uptime in nanoseconds: (A value that is never the same)
Virtualization has been enabled in boot and in VirtualBox. And according to what I have googled so far the hardware should be able to run it.
I also tried to use VBoxManage to midyvm and setextradata to modify the virtual machine to run.
In VMWare I had to download a unlocker patch to be able to add the VMDK, and I have tried to restore the image to a HDD and add the partitions that way to the virtual machine. Though this only results in VMWare complaining that the image is not a OSX Server.. No matter how much I shout at the screen that I have not told it that we are not looking for a server.
So. If anyone has a fool-proof way to virtualize a Mac OS/OS X image in a windows environment using e01 evidence files I would love to hear it.
Your friendly neighborhood Digital Forensics-man
Stig