Cheapest ever by some way.
Even beats the pricing error MX300 2tb from Amazon UK
Cheers to dowey for pointing out AU availability with cashback on top
With the 8% CR this is around 23 dollars discount making it under $300AUD
IF you haven't reached the $50 cap already on Shopback - cashback is 10% there
$322.15 Delivered for prime members @ Amazon AU, which you can then combine with 10% cashback.