I have been looking for a 8TB cheap external hard drive and found this on Amazon AU. Sold by Amazon US and is eligible for free international delivery for prime member. Just ordered one and showing delivery estimate on 4 -10 April. So maybe not a good choice if you do mind the wait.
And don't forget the 5.00% Cashback from CashRewards.
Why not this one: https://www.amazon.com.au/dp/B07D5V2ZXD