Macintosh Performa 6400/180. Tested here with a minimal install Mac OS - no HDD included. The machine has 80MB of RAM. 

Original battery was removed, and I put in place a batter holder setup I've used on other machines that takes 3.6V or so battery. 

Optical drive tested working, floppy drive was not tested. 

As is typical of machines from this era, there is some brittle plastic, and a number of internal pieces from brackets have broken including parts of the drive sleds and motherboard guides. There's some wear to the outside of the case and one of the feet is broken off (included inside). So, condition is OK, but not amazing.