Home sever, drive expansion help

[NuKa147]

Recently I decided to take my existing computers and put them into a rack mount. Everything went smooth, my server went in fine and my main pc went in fine, the only problem I'm having is with my third computer (which is meant for older applications and gaming) it has more than 4 drives in the front and the case i have only has 3 drive slots on the front. I read somewhere you can get a removable Drive Bay for the front but the only one I can find is for hard drives only, I'm new to the server cases so I might be looking up the name for it wrong or something. If anyone can help it would be much appreciated, the case i have is a Rosewill RSV-L4000.

 

[popatim]

Your post is not very clear to me.
That Rosewill has 8 internal drive bays which should fit your 4 disk drives just fine. You just wont see them from the outside.
That Rosewill has no external drive bays so you can't be meaning cd/dvd drives...