TECH Adapter to turn 2x 5.35" drive bays into 3x 3.5" drive bays?

[deusexaethera]

Lots of cases have one or two external 3.5" drive bays at most, but I have at least four things I'd like to stuff into them. So I was thinking that I could get a case with a slew of 5.25" drive bays and get some sort of rail adaptor that would turn two of them into three 3.5" drive bays. I've seen such things for hard drives, but nothing that's designed to stick out the front of the case. Has anyone here seen such a thing?

 

[5Gen_Prelude]

I start with a bigger case - I've seen plenty of 4 external 5.25 cases

 

[deusexaethera]

I start with a bigger case - I've seen plenty of 4 external 5.25 cases

3.5"

 

[5Gen_Prelude]

Oh. Right, you started a new thread over the same thing

 

[deusexaethera]

Oh. Right, you started a new thread over the same thing

No, they're two different questions. They look similar, but one is regarding a 3.5" external box with an open faceplate, and the other is regarding a way to convert 5.25" drive bays into multiple 3.5" drive bays inside a full-size computer case.