Pros: Big, roomy, beautiful. The handles are a godsend, since the case is so heavy. The handles make it easy to carry despite its size and weight. Also, I keep my case on a glass tabletop, and because of the bottom handles I can actually glide this thing around like it's sitting on ice. Makes it very easy to work on! I love the new sliding tray HD side mounting system, makes it so much easier to install/uninstall HD's a lot.

Cons: -It seems with a little tweaking they could have offered 8 internal HD bays, but they didn't.
-My case came 1-fan short so I had to go buy one. Whoever built the case messed up on the rubberized grommet around the door panel bezel so now one of the corners the grommet is hanging loose and I will have to cut it off.
-More of a Newegg/UPS thing, but my case actually arrived slightly smashed. The box was horribly mangled, and some of the plastic pieces in the front door hinge broke off from shock of being dropped probably, but miraculously did not alter the functionality of the door at all.

Other Thoughts: This is my second CoolerMaster case. I owned a Comstacker before this one and liked it enough that I figured I'd give them another shot when it came time to build a new machine. Well I'm glad I did, because the Cosmos is better than the Comstacker in every way, shape, and form. From the bottom mount PSU, to the side loading HD trays, to the sleek external design, this is the best case I have ever had to work with.

Pros: Quiet,
The only heat sources in my case are the video card and the CPU. The fans on this case keep it well within normal temps. No case noise from the fans case came with.

Cons: none. Little heavy but the top and bottom bars are good handles.

Other Thoughts: The side panels have a habit to "look" like they are secured. But fall off if moved around. Make sure the locking tabs/lever things in the back are completely down.

Would be nice if the motherboard mounting area had a cutout for the back bracket after markey coolers/water blocks use. But its not like you need to change that out often.

Pros: Plenty of room inside for large cards and coolers. This case comes with a bunch of fans that have held up so far. It's built fairly well, sturdy as you would expect. Airflow seems good. It's dark, which is a major plus for me because I can't stand LEDs. The case has some sound dampening material in place which seems to work at least a little bit.

Cons: The side panel behind the motherboard barely closes even when the case is empty. It can be very annoying when the panel pops off for no reason. There is almost no room for cable management the way the drive bays are positioned. They're positioned so the hard drives stack vertically and upside down, which makes plugging in SATA a nightmare unless you want to buy all 90 degree connectors. I'm only using 4 HDD and it's already a severe mess. Not to mention this contributes to the panel popping off.

Other Thoughts: I'm overall disappointed with the case. I think it was probably the best when it came out a few years ago, but now it seems outdated. It's massive and a lot of the bulk on the outside seems unnecessary. The bars on the bottom are okay because they provide room for airflow, but the top? They must be just for looks because it's way too big to lift up by those rails. For the money there are way better cases out there these days.

Pros: Huge and well built! The case feels solid when handled and there is plenty of room inside for whatever you might need. My Zalman 9900A CPU fan fit with room to spare. Along with the Zalman cooler I added 2 more 120mm fans, one in the provided mount above the HDD (it does eliminate the use of the bottom 2 optical slots but I moved the 3.5" up for my fan controller) and another mounted on the HDD cage side through some creative crafting. That makes 6 120mm coolermaster fans plus the CPU cooler and I am honestly surprised that even when running full out the noise level never exceeds a hum of ambiance. With a newborn in the house this is a huge huge plus.

Cons: I'm not one who deducts eggs for nit-picky reasons or because only the perfect product can earn that 5th egg... I took an egg away because of the cable management. I knew going into the purchase that a few reviewers had trouble with the bar running down the back panel and had to cut some of the soundproofing foam to allow the case to close. This was an understatement. After running all my cables, getting everything zipped up and ready to go, it then took about an hour of reworking, cutting foam, reworking again, rerunning and a little more cutting foam to get the back panel to close. I recommend to all who buy this case to avoid using the bottom mobo tray slot to run your wires as the only way back through to the components runs across this bar. I had all my PSU cables running through and across the bar and am now down to 2 that fit very very tight. I knew it had been an issue but I didnt expect that level of problem from it.

Other Thoughts: My cable management issues aside, this is the best case I have ever owned. The airflow, layout and options for expansion really leave me wondering if I will ever be purchasing another case. It looks neat and clean sitting next to my desk and runs quietly which were my two biggest needs.

Pros: There is a ridiculous amount of space inside of this beast. The sound foam is great, and it just looks amazing. I like the placement of the USB ports and the power button. The bars to carry it by also come in handy. The price was great and free shipping on a package over 40lbs is crazy. Newegg is great.

Cons: The sides will probably really annoy you when you try to put them back on. You have to get it just right. The stock fans really suck, but this was expected and they are easily replaceable. If you want fants cooling your hard drives, three of the bays do become useless. That is not a problem for me, but if anyone plans on have a lot of hard drives, that could be an issue.

Other Thoughts: I really love the case.

Pros: This is my second of two existing Cosmos 1000 cases. I'd accumulated enough "old" parts that were still pretty good so I built a "old parts" gaming machine. These cases are so accessible/sturdy/well designed that I just couldn't pass up such a great sale item. I've got overclocked systems that "can" get hot, and in the summer my house can get to 90F, and it hellps to have the quick/easy option to remove the side panels for more air when I need etc. Really nice.

Cons: Its not exactly a con/but these are pretty big cases and if you need to squeeze this under/in between etc. You might not be happy. They're not inexpensive, but I bought this on sale with no shipping charges!

Pros: This case is giant and easy to work inside. Everything stays cool with guided airflow. Most importantly, the big, slow fans and foam insulation make the case ultra quiet.

Comes with lots of extra stuff, even some zip ties!

Cons: It is near impossible to connect some of the internal hard drive bays using the supplied cables. Once you slide a tray into place, you don't have access to the rear of the drive so you have to connect the SATA cables (easy) and power cables (hard) before you insert the tray. That means you need 5" of slack on your cables. This is only a problem if you want to install more than 4 hard drives and can be easily solved by buying some power extension cables.

Pros: Lots of room to put everything and anything...I mean everything...6 HD Slides, can run cables along the backside of the motherboard

Cons: The PSU mounts on the bottom, so you lose one case fan before you even start doing anything...
Not really a con, But needs to be stated up front for those people who count on air cooling instead of a water solution...

Pros: Lots of room, good design and look

Cons: bad cable managment, cant run my cables and keep then hiden without interferance from side pannels. Had a lot of trouble getting one side to stay closed.

The case has a nice idea for keeping sides on when it works, took me 30 min and some force to get one side to stay on

havnt found out if its the fans, or the HDD that are making a sound every so often, I feel that if i take my door off wont get it back on.

Other Thoughts: I would have prefered the solid black version, as not a huge fan of silver, but didnt see paying that much more just for black.

Pros: EVERYTHING
-space for just about anything and everything
-tons of extras, parts case, ties, screws, drive trays, filters, video card cooler
-fair price

Cons: none

Other Thoughts: This thing is a beast. Zero limits with this case. spots for 5 internal fans and filters, 6 hdds, a video card cooler, 2 holes for running wires in/out of case.

This case is simple, ingenious, intuitive, and just fun to work with.


Get this case, its bells and whistles are louder than any other.