The SF platinum series rarely go on sale, the SF750 is usually $239. These are best in class for their form-factor with nearly all reviews putting their power regulation, thermals, and noise levels way beyond any of the other SFX competitors.
The Platinum SF600 is also on sale at $179 (usually $199) and SF450 Platinum is $141 usually at $165.
I've bought the SF750 even though it's overkill for me, but the fan won't spin up until 300W is drawn and it's at the price I was going to pay for the SF600 anyway.
SF600 (Platinum) ($179 usually $199)
https://www.scorptec.com.au/product/Power-Supplies/Rackmount…
SF450 (Platinum) ($141 usually $165)
https://www.scorptec.com.au/product/Power-Supplies/Rackmount…
Nice.
Needed another and the ATX plate is really useful.
Thanks OP