I am not an electrician. Can somebody please tell me if I can run one of these on a standard outlet for an apartment in the USA? I would buy the power supply that bitmain sells.
No, the Bitmain power supply requires a 220V outlet, which most apartments do not have.
If your apartment has an outlet for an electric dryer or an electric range, you COULD hook it up via that and it would work.
If you use a standard ATX type power supply of 1200+ watts with enough PCI-E cables, a standard 15A 110V outlet WOULD handle that.
Chances of ROI with 6 of these + 25% VAT?
Depends on your electric rate.