Within the interior of the case are present six ODD rails for the top three 5.25" bays. Also present is the Antec Tri-Cool fan with a 4-pin Molex connector and an ingenious 3 position switch allowing the user to select low/medium/high settings. Just about the oldest modder trick in the book, but this time the switch is located inside the case. It would be nice to be able to pick a speed without removing the side panel but if left at medium; I've found that the fan is still quieter than the average CPU fan. A 120mm fan is capable of turning at a much slower RPM, moving a fair amount of air, while still being noiseless compared to an 80mm fan moving the same amount of air. The provided power supply is an Antec Neo HE 430W. Modular in design, with a 24-pin ATX connector, 4/8 pin auxiliary connector, 4 SATA connectors, 6 regular connectors, 3 floppy connectors, and PCI-express connectors. This power supply is capable of handling almost anything you can fit into this case. All of the lines are sleeved in handsome black with red stripes, and are very well done. I would, of course, have liked to see quick-disconnect Molex. Three 12v rails are present, with very impressive numbers. Rated for 384W peak power and approximately 310 Watts continuous, if the HE is anywhere near as good as the numbers read, it can easily withstand a high end SLI setup. My only issue with the Neo HE line of power supplies is their particular refusal to function correctly with a moderate number of Asus motherboards. I have been told that newer boards and newer HE power supplies should not have this particular issue, but if you're in doubt, you may wish to contact either Asus or Antec in advance to double check compatibility.