I have 3 Dell Optiplex 380s for sale.
They all have a 2.93GHz Intel Core 2 Duo E7500 processor, 4GB of DDR3 RAM and 160GB hard drives.
They've each had all the dust cleaned out and fresh heat sink paste put in.
They each have genuine copies of Windows 10 freshly installed on them.
These are decent PCs, they are quiet and they play full HD video perfectly fine with no stuttering.
Also the price is per unit.