I got 5 in mine, but then again, i have
2x RAIDed hard drives in caddies
1x Fan Controller
1x Card Reader.
And then I got another 6x internal 3 1/2 inch bays for hard drives.
I have seen some fan controllers take up 2x 5 1/4 inch bays.
Some people might still have 2 optical drives in the PC. About the only people that seem to do that is those people that copy CD/DVDs on the fly
And of course you got some of the wackiness that Thermaltake has brought out like
Introducing the Thermaltake X-Tray 5 1/2 inch beverage hold with cigerette lighter.
would any one be stupid enough to get one of these is beyond me.
1. I would not have a drink that close to my computer case.
2. Smoking around your computer is bad. Smoking kills your lungs and your hard drive.
However i did one stage have the Thermaltake i_tray with I found useful.
It was a small tray in which I could store Screws, CD Pens, Memory cards. My only problem with it was that they could of made it a little bigger