I think the SE's with ' superdrive' under the SE were more rare than the ones that simply read FDHD...I have one of each....as well as a couple of early ones...one has the infamous squirrel cage fan..that went whooooosh and sometimes played havoc with the video screen...hence, APPLE had many of those SE's with said fans.. replaced..and sold many fan upgrades. the dealers at the time, were busy replacing them
on the flip, my squirrel cage, doesn't seem to cause any of those said glitches..go figure...I have a few of 'em left on analog boards I pulled from misc SE's over the past decade..as well as some with the replacement fans.