While we're taking things apart, lets just go ahead and remove the top panel from the m998. This will show you how much room you'll have to work with. Not only will installing the power supply be a lot easier but so will working with all of your 5.25 inch drives . The power supply will get a little anti-vibration dampening from that bar that goes across the chassis about 3/4 of the way back. It gets mounted by standard screws that fit through another long slot, so you can move it to accommodate your own power supply. 

     Ultra has added a few special touches, like this one. This is the back of the audio and eSATA port panel for the front bezel. The USB ports are totally separate from this panel and are actually located above it, where those two round white wires are going. So what Ultra has done with this, is make it interchangeable. You can mount any standard size PCI-type expansion plate in this spot. So, if you don't want the eSATA and audio ports up front, you can replace it with something like the four USB expansion ports that come with most motherboards. 

     It's been a while since I've seen a removable motherboard tray, and I can't say I really missed them. Usually, the tray was a little loose inside the chassis and was a noisy source for vibration. Ultra has made that irritation a thing of the past. Not only does the tray fit fairly snug, but it also gets a little extra reinforcement from a pair of screws that will hold it in place, one each on the top and bottom.

     The tray is made from highly polished stainless steel that will make a very nice surface for lights to reflect from inside the chassis. The tray is large enough to accommodate an extended ATX size motherboard. At the very edge of the tray we can see the Ultra Power bar.