All of them are old. A couple of Pentium IIs, a Pentium III, and two Pentium 4s.
I also got a free laptop (my uncle gave me all this stuff). The laptop I’m gonna sell, but the desktops... I’m not sure. I want to keep at least one of the Pentium II/III ones for retro purposes. The P4s, I am currently installing + updating Windows on them. They only have 512mb RAM each but I am thinking maybe just donate them to a church or find an organization that will give them to someone who needs them.