Very hard to find stock of good PSUs at the moment and a little bit cheaper than everywhere else. Amazon also has a very good track record of meeting and often beating their estimated delivery dates.
Best PSU deal still goes to this Corsair SF750 deal but my DeLorean is out of service at the moment.
Please note that while listing says 1-2 months on checkout the quoted delivery date was Jun 23, 2020 - July 13, 2020.
Hope this helps someone.
Naw