This is a Soundcraft CPS 150 power supply, which works on several mixer / console models produced by Soundcraft. Check your unit's requirements prior to purchase, of course.
This was a backup power supply to a working console. It has some scuffs here and there, as you can see in the pictures.
If you're looking for a replacement or backup power supply, this is your chance.
Price is €100 of make me an offer!