Two 5.25" bays.  While normally for DVD drives, I use mine for hot swap hard drive bays, which my next PC will need to have without being something old.  Or just make the 2 bays hot swap.  As much as the newer Optiplex's can do including some gaming, I think that would be a worthwhile added feature.  Some people use Optiplex's for small servers also. Dual audio jack - one input and one output.  I need that for my audio setup.  Not a singular audio jack for both.  Otherwise, audio card needs to be added. Due to required features, I'm hoping my 7010 MT lasts at least long enough until Win10 EOL/EOS in 2025. Something I like about Optiplex's (I can only speak for the MT's) is that they put good power behind music.  With a fine tuned equalizer in Windows Media Player, any stereo I play my PC thru sounds better with PC playing.
If a new Optiplex Desktop were to launch, what features would you want to see?
"DS: If a new Optiplex Desktop were to launch, what features would you want to 
see?"