Yes, that is an M7626 KA660 VAX 4000-200 CPU. The blue connector is
the H3602 console panel connector, the bottom grey connector is the
memory connector, and the top grey connector with two notches is the
DSSI connector.
I recently removed the battery from my M7627 KA660 and documented with
photos, at the bottom of my 4000-200 restoration thread. Hopefully you
will find the visuals useful. I found no similar photos on the web when I
attempted the job:
http://vintagecomputer.net/browse_thread.cfm?id=608
Bill