I originally purchased one of the FD Node cases but realized that the 6 HDD capacity was nothing since I had pretty much already filled it from day one, so I bought the DS380 and thought everything was going to be great. A little over a year later (15 months?) I wish I would have never wasted almost $200 on that piece of crap! As pretty much everyone else noted, the air flow in the case is horrendous, my 6x 4 TB HGST drives were regularly in the 50-60c range. I didn't see the airflow mod until about after a year and as said above, it's not fun to try and fit it in there. It didn't really seem to help me much. Also to fit my HBA card in there I had to modify the plastic piece that you would take out to use a videocard, so I wouldn't lose one bay simply because there wasn't a few millimeters clearance for the card. Next up is the complete lack of cable management: trying to fit 10 SATA cables, 2 4 pin molex connectors, 4 sata power and the 24 pin in there is like cramming 10 pounds of spaghetti into a 10 ounce bowl. The cables would constantly obstruct the air flow and hit the fans, switching to the HBA slightly helped with the cable mess, but then I had to deal with 2 14" SFF-8087 that I had no place to stash. Also having to take all the drives out just to do anything on the motherboard or anything else made me want to punch babies time and time again. Since the backplane cables and the 2.5" drive cables butted against each other it was always fun reconnecting and disconnecting them whenever I needed to do something. I almost ripped off one of the capacitors on the backplane because of this and I actually did rip out one of the SATA ports, but luckily it went right back in.
After using a standard sized PSU in the case (well actually hanging out the back) for almost a year I decided to finally get Silverstone's SFX PSU to go in it. This turned out to be a costly decision because a lot of people on NewEgg said that the PSU has caused various problems for people, from outright dying after only a few months to completely frying peoples systems and killing their drives! There were good reviews for it, I think it had maybe 3.5 or 4 eggs, so I decided to go with it and take my chances. After maybe a month of using it one of the intake fans on the side of the case started grinding, so I replaced both of them with some older Thermaltake fans that I had lying around and everything was good for a few days until the fans started making noise again (I think something was hitting them) so of course I had to rip the drive cage out again and when I reassembled everything I had found that the backplane had mysteriously died in that short amount of time. It wasn't static that caused it because I was doing everything on a hardwood floor. I took the backplane out and then found out that even more modifications had to be done because the two cross braces actually block the SATA power and data connectors on two of the drives. Luckily I have a nice Dremel (rotary tool) with a good cutting wheel or I'd be screwed because that's some pretty tough steel to cut though. Once I made sure everything would fit, I put everything back together and thought the worst was behind me....boy was I wrong.
Everything was fine for a few weeks, I woke up at like 4 am one night and couldn't get back to sleep so I decided to mess with my NAS a little. I don't even remember what I actually did, I think I had connected in the fan splitters that I had bought or something else simple like that. Then I queued up a few TV episodes to stream from it and eventually fell asleep around 6 am. I woke up around 11 am to an unresponsive NAS, it wouldn't stream anything, I couldn't SSH into it, and there was no video output from either the IPMI or the VGA connection, just a black screen. I rebooted it, hoping it was just frozen, but I was stuck with the same black screen forever. The IPMI didn't show any errors, and the board itself (AsRock C2750-D4I) would physically power up since the fans would spin, but I would get nothing out of it. Since it's SoC there went $450 down the drain! Good thing is that it gave me the chance to upgrade, because buying that board was a bad choice also considering that putting 64 GB in it will cost you about a grand since only one company makes 16 GB ECC UDIMMS that will work with it. I managed to snag a deal on an openbox SuperMicro octocore Xeon board (I saved $150!) which supports 128 GB of ECC DDR4 RDIMMs or 64 GB ECC UDIMMs, I went with a 32 GB stick to start off with obviously :D
Aww I guess I'm a day late! After a few days research I went with the NZXT H440 and I love it. I holds up to 13 drives (2 SSDs in the motherboard area, 10 2.5" or 3.5" [mix and match!] in their unique mounting brackets, and one 3.5" drive on the bottom of the case), the one thing I really love about this case is there's no wasted space since there aren't any 5.25" bays which would have been largely useless for my NAS, so that space is used by 3x120mm fans that blow directly across the HDDs (there's about an inch or two between neighboring drives, even if you have it filled with 10 drives!) so it keeps them all at a nice 30-35c :) Cable management in it is also phenomenal since you hide everything behind the motherboard tray and the HDD cage.
The only issue that I had with it was that the case tended to vibrate a lot and when it was even slightly off balance (my floor isn't completely level), it would hum and get exponentially louder until I smacked the side of the case to shut it up for a while. I never really did figure out what was actually vibrating like that, I think it was the side of the case since it would stop when I applied pressure. I ended up buying a bunch of rubber HDD mounting grommets since there wasn't really much to dampen the vibrations since the drives were in metal trays that connected directly to the frame of the case, and the one on the bottom of the case was just vibrating the bottom of the case, and they were fun to put on. First off I had to use the bottom mounts for the drive sleds since they slid in there and there wasn't even a big enough gap for a piece of paper, then the grommets were too thick so I had to cut them in half like a bagel, and the screws that came with them didn't work too well because the were assuming that you would be mounting them from the side or some other way. After about three hours messing with all those, the case is now whisper quiet (it comes with thick sound deadening on the side panels). I can only hear the fans, which are muffled, and I can only hear them because the case is about 9 inches from me. When I'm a few feet away I can barely hear it, you can't hear it at all while watching a movie. Best of all it was only $100. I wish I would have gotten this in the first place and saved $80 and multiple hours worth of headaches over the past year or so.