Currently, the cheapest 4 TB hard drive I can find. It's a great option if you only need a random backup hard drive, even though it's listed as a game drive it's basically a regular external hard drive, works with Windows Mac etc. I currently have two of them, and they’ve worked flawlessly.
The only other store that has this specific hard drive in stock and offers price match is Rubber Monkey, but they refused to price match. They didn’t provide any reason for their decision.
This drive isn’t the cheapest it’s ever been, but if you’re in the market, this is an option.
Just a quick note, this seller also has the hard drive listed on Trade Me with slightly cheaper shipping options.
Don't forget the usb port is soldered to the control board with wd drives.