350W power supply ATX with an adapter to AT (P8 + P9 plug)
with a power switch on the back as shown

Connections: 2x Molex for CD/hard drive, 1x for floppy drive + some Sata (which you usually don't need with an AT computer);

A PC that requires an AT power supply usually consumes a maximum of 150 to 200W of power; This means that the power supply only supplies as much as is really needed and is hardly overloaded during operation.

100% OK, used, functional, in good condition.

It is a good technical solution, with an adapter v. ATX to AT; The pure AT power supplies that were produced 30 years ago are often no longer good after 30 years of storage. If you have any questions, please call.