PC to Mac and an EHD

[PictureMom]

Hi. My EHD failed and I am getting a new one from Backblaze. I am also going to be switching from a PC to a MAC mini. The backblaze folks told me that my new EHD will be set up with files from my PC.

Can I just move the EHD to the MAC? Or do a I need a second one to be formatted to MAC? I am a little confused as to what will open on a mac.

I use the EHD for photos and all my scrapbooking files.