You will get the Stanton S-550 in the photo.  There is no power cord with it so I can't do anything to test it unfortunately.  I noticed one of the knobs is missing, otherwise it looks OK.  You can still slide the lever without the knob.  Since I cannot test it I can't guarantee it works so I am selling it AS IS for parts or repair only with no returns for any reason.  I priced it low because of that.