The supply has a 20+4 pin ATX connector, so will work with old 20 pin motherboards and newer 24 pin motherboards.
The unit has passive PFC, which you'll only find on the cheapest of power supplies.
Efficiency is likely to be very poor.
Thanks Vincent second time today that you help me!
Will see if I may get another one then, dont want to really but well, we will see.
You don't necessarily need a new power supply, it will work.
Worst case scenario it fails and damages your other components, but these don't seem valuable.
More likely it will let the smoke out one day and you can replace it then.
If it is 70% efficient compared to a 90% efficient supply and your PC requires 70W, that is 100W at the wall rather than 78W.
If that ran 24/7, it would cost an extra 105kWh per year. In Australia that costs about $30.