Internal features:
In this first picture, you can see the motherboard portion of the back panel. The expansion slots are totally tool-less. Simply remote the locking device, and the covers slide out. Insert your expansion card, then replace the locking device to secure your cards in place. In the second picture, you can see the power supply housing. If you look closely, you can see the bracket that allows non-standard power supplies to be used.
Here you can see the removable motherboard tray. This looks pretty standard with one exception; the supports for extended expansion cards. Since this case can handle extended ATX server motherboards Thermaltake has included some stabilizing supports for extended expansion cards. This is built directly onto the motherboard tray. There is also one handle on the tray, however I do not recommend using this as the only means to remove/carry the motherboard. The handle is a little flimsy, which is no surprise since it is made out of thin aluminum. I would like to have seen two handles like the motherboard tray found on the Shark case.
The Eureka provides a nearly tool-less installation of your hardware. To install 3.5" hard drives, Thermaltake has included 3.5" hard drive trays. As you can see below, these are exactly like the trays installed on the Shark case. I really like this implementation of removable hard drives. On the tray, there are vibration dampeners that should reduce vibration noise if you have high speed drives.
The 5.25" drive rails are stored behind the 5.25" bay covers. This is great as they are always at hand and not lost (unless of course you don't put them back on the covers). These allow you to easily remove your 5.25" devices, however you do need to use screws to attach to your devices.
Thermaltake has included two unique brackets for this case. The first is the above mentioned power supply bracket. The second is for extended ATX motherboards with dual CPUs. If you are familiar with extended ATX motherboards, if the CPUs are side by side Thermaltake has included a back plate to provide some additional stability to your motherboard and allow you to attach your CPU coolers.
