Toshiba X300 5TB Desktop 3.5" SATA Hard Drive $120.74 USD Delivered (approx $170 AUD) @Amazon US
URL: https://www.amazon.com/dp/B013JPLKJC
Back on sale, cheapest price ever although the weak Australian dollar hurts this deal a bit. You need to change the seller from kccomputer to Amazon.com
The 8TB version is also at its cheapest price ever at $158.99 plus 11.72 USD shipping (approx 326 AUD): https://www.amazon.com/Toshiba-Performance-Desktop-Internal-…
Camel x3 link for the 5TB:
https://camelcamelcamel.com/Toshiba-Performance-Desktop-Inte…
Camel x3 link for the 8TB:
https://camelcamelcamel.com/Toshiba-Performance-Desktop-Inte…
Great drives for a NAS, fast and (a bit noisy).