Hello and thank you for those selections.
Will it matter if the drive is out of a security DVR? In other words, I plan on putting it back into the DVR security system. I just need to transfer files and since the WD HDD supports S.M.A.R.T. status, I wanted to try a repair as well from the iMac's Utilities Application. I am able to do this on other external drives however, this drive has a different method of connection. So I need the adaptor and (2) cables; one to the USB port (iMac) ending at adaptor, one to the adaptor ending into WD HDD. Hope this makes sense?
Maybe I can just quickly remove one of the external HDD's I currently have and connect this WD HDD to it's housing since I have cables for those already?