Cooler Master Cosmos S ATX Full Tower Case Black- (RC-1100-KKN1-GP)

by Cooler Master

Product Details

• Product Dimensions: 28.8 x 26.5 x 13 inches ; 30.4 pounds
• Shipping Weight: 37.6 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B0015NE1KG
• Item model number: RC-1100-KKN1-GP
• Average Customer Review: 4.5 out of 5 stars  See all reviews (20 customer reviews)
• Date first available at Amazon.com: July 7, 2004

Product Description

From the Manufacturer

From the Manufacturer

PRODUCT FEATURES
Intelligent user interface with hidden I/O panel featuring a built-in touch sensor Cooler Master's flagship aluminum alloy gaming chassis Design inspired by the sleek contours of the hottest dream race cars Sports version of Cosmos 1000
Spotlight
	Side panel comes with a 200mm fan (150CFM) for maximum VGA cooling		120mm x 3 radiator can be mounted inside the top of the case (radiator is optional)
	Side panel mesh design for superior ventilation		Three fans can be mounted on the top for excellent air exhaust (fans are optional)
	Meshed front panel with red LED fan to enhance airflow		Independent air intake designed for bottom-mounted PSU

PRODUCT SPECIFICATIONS

Model	RC-1100-KKN1-GP
Dimension (W / H / D)	(W) 266 x (H) 598 x (D) 628mm
Weight	Net Weight: 30.4 lbs; Gross Weight: 39.2 lbs
3.5" Drive Bay	4(Hidden, converted from 3x5.25 inch drive bays)
5.25" Drive Bay	7(Exposed)
Cooling System	Front fan(intake): one 120x120x25mm, 1200 rpm, 17 dBA (included), Top fan(exhaust): one 120x120x25mm, 1200 rpm, 17 dBA (included), Top fan: 120mm x 2(optional), Rear fan(exhaust): one 120x120x25mm, 1200 rpm, 17 dBA (included), Side fan(intake): 200x230x30mm, 900 rpm, 150 CFM(included)
Expansion Slots	7 slots
I/O Panel	USB 2.0 x 4, IEEE 1394 x 1, eSATA x 1, MIC x 1, Audio x 1(support Intel HD / AC 97 audio)
Material	Chassis: Al. Appearance: Al (side panel: 1.5mm)
Motherboards	Extended ATX, ATX
Optional Component	Transparent side panel, Fan bracket
Power Supply	Standard ATX PS2 / EPS 12V (optional)
Other	Keep-out requirement for CPU cooler installation:, At least 5.7 inch(145mm) separation between motherboard and the side panel of COSMOS S

Product Description

CoolerMaster Master Cosmos S Chassis RC-1100-KKN1-GP Computer Cases

Customer Reviews

Most Helpful Customer Reviews

21 of 21 people found the following review helpful:

5.0 out of 5 stars Sleek design. Less quality than the Cosmos 1000 or 1010., April 5, 2008

By 

Raiden B. Stiegel (South Georgia (USA)) - See all my reviews
(REAL NAME)   

This review is from: Cooler Master Cosmos S ATX Full Tower Case Black- (RC-1100-KKN1-GP) (Personal Computers)

Pros:
Sleek design. Great for overclockers and water coolers. 3x120mm radiator area on the top under the grid makes it GREAT for cooling. Previously owned Cosmos 1000.

Comparison:
Slightly lower quality side panels and all around quality. (that's slightly).
Front audio headphone port no longer makes faint clicking noise when listening to sound through headphones and hard drive is accessing.
Comes with 1x120mm top fan (out of 3) instead of 2x120mm from the Cosmos 1000.
Doesn't come with bottom 120mm fan that Cosmos 1000 came with.
Comes with front 120mm hard drive cooling fan and intake (Cosmos 1000 lacked)
Lots more ventilation and airflow intake and outtake capability (compared to Cosmos 1000 which used negative inside pressure to cool components... a bad idea for gamers with graphics cards that needed air to push out the back).
Lighter than the Cosmos 1000 by far.

Cons:
The side panel is more flimsy. 200mm side fan is great, but make sure nothing touches it. The fan will easily break if something pokes it while it's in motion. Mine did (which Cooler Master gracefully replaced). Not as much noise reduction as the Cosmos 1000 but still it's a gamer's case. Paint comes off easily on the top handle bars and feet (semi-knife scratches will do the job)

Other Thoughts:
Tested with: video card: eVGA 8800GTS G92 512mb Overclocked to 800/2000/1000 Idle 45c Load 52c
Processor: Q6600 @ 2.92ghz on Zalman 9700 @ 38c idle 55c load
RAM: 4GB Corsair XMS2 RAM
HDD: Seagate Barracuda 7200.11 500gb
Mobo: Asus Striker Extreme

5 of 5 people found the following review helpful:

5.0 out of 5 stars If you need space, this IS the case!, March 8, 2009

By 

Forethought (Redondo Beach, CA USA) - See all my reviews

Amazon Verified Purchase

This review is from: Cooler Master Cosmos S ATX Full Tower Case Black- (RC-1100-KKN1-GP) (Personal Computers)

This is one VERY attractive case. Soft red back lighted touch controls complemented by a similar glow from behind the front mesh panel is both striking and subtle. Aluminum construction makes case is significantly lighter that the standard Cosmos. I don't find the side panels at all 'flimsy' given that they are lightweight aluminum sheet.

The case has plenty of space and great cable routing options - many cable ties are included. I'm running it with 2 Sapphire HD4870 1GB cards with no clearance problems. (These are huge cards with heat pipe cooling.) The only issue may be finding an appropriate CPU cooler. A Cooler Master N520 just fits - side panel clearance maxes out at about 140mm with the side fan installed.

One other nice touch - the case includes motherboard to power supply extension cables to accommodate a bottom-mounted power supply. The Zalman ZM850-HP 850W power supply didn't need them but they'll be a lifesaver if one of your power cables is just a little bit too short! (BTW, not only does a bottom-mount power supply stay cooler but it really improves the balance of this tall case.)

Excellent job, Cooler Master!

2 of 2 people found the following review helpful:

5.0 out of 5 stars Still love it., December 12, 2009

By 

D. Everts - See all my reviews
(VINE VOICE)    (REAL NAME)   

This review is from: Cooler Master Cosmos S ATX Full Tower Case Black- (RC-1100-KKN1-GP) (Personal Computers)

I have owned this case for about a year and a half now and thought it about time I gave it a review as I have been really happy with it.
There are a couple things that have bothered me over time, but nothing has stopped me from loving the case and none of them are worth taking away any stars.

*****Things I have loved*****

After all this time of owning it, I still find the case to be one of the most stylish things I own. People still comment on it to this day when they see it.

Initially I was worried about the "Touch sensitive" power button becoming a problem down the road, but this feature has worked flawlessly for me and it is still one of my favorite features on the case. I wish everything I owned was touch after having this and various other devices lately that are touch capable.

It is an extremely roomy case and I have never had a problem working around inside it at all. (Putting a list of what I have inside it at the bottom of the review.)

The cable management on the case is really nice. When looking inside the case to the right of the motherboard there is a machined strip of holes that run vertical up the entire inside of the case. For every cable you have in the case that is longer than needed you can route that portion of the cable through these holes and lay them against the other side of the case. This is easy to do as both sides of the case have a removable panel. The case also came with these little wire management zip ties that have a sticky backing and you can position them as needed on the back panel where you need them for the wires to keep them in place. This system has made for a great looking interior and helped with the air flow a great deal. (Going to put a picture up on the customer images of the inside of the case with all equipment in.)

Installing CD/DVD drives and the like, couldn't be any easier.
1: Push the tabs to the right and left on the front panel
2: Pull out one of the drive covers
3: Slide the drive in
4: Push the blue button on the side of the case and it locks it in nice and tight.

The rails that run on the bottom of the case keep it off the ground. This allows you to put a PSU inside that has a fan on the top of it. You can install the PSU so the fan draws air from under the case and blows it out the back. No PSU heat inside the case is AWESOME.

*****Things that have bothered me*****

Dust management could have been better. Don't get me wrong, it keeps the dust out of your system very well, this actually makes it harder to clean sometimes. You can easily use compressed air to clean it out as a normal case and be fine. However, I have found that over time you need to do a little more than that. For the side panel you need to remove the fan and the panel the fan sets in to truly get the dust out of there. This is because the mesh used to keep dust out of the computer is very fine. While this does keep A LOT of dust out of the system, which is a good thing, it does make it harder to clean. I have only had to do this once since owning it and it took me about 10 minutes, so its not really all that bad.
The drive covers have this same mesh. The problem here is that you can't take the mesh out of the drive covers so it takes a bit more time with compressed air to get all the dust out because most of it is between the mesh and the outer metal. Again, this takes me all of ten minutes as well, plus only the drive covers at the bottom really accumulate anything as they are in front of the fan that cools the hard drive. I couldn't see knocking a star off for this as the system is effective at keeping a lot of dust off your components.

The hard drive bay isn't as easy to use as the other drive bays. This is because the hard drives are screwed into an enclosure which is slid into the compartment and then screwed down itself. The only reason this bothered me is it can be hard to line up the holes for the outer screws when installing it. So why am I not knocking off a star for this? Because the system is very effective at keeping your drives secure. There is absolutely no vibration around my drives. After you install a hard drive into the enclosure you put these two panels on the side of it that are cushioned with this dense foamy material and when you slide this into the case it works to really stop all vibration. I hope they continue with this system and just add improvements to make it screw-less, but really its not even as hard as I make it out.

Its heavy. Its not so heavy by itself, but when you have all your stuff in it, it is pretty darn heavy. But thats what you get when you purchase a full tower meant to carry a lot of stuff inside. There is even a ton of room for water cooling. Which I haven't done myself so I can't comment on that.

The cloth bag supplied to put the case in when taking it with you somewhere can leave swirl marks on the glossy finish on the top front of the case. I only ever took the case out of the house one time and the cloth bag left swirl marks up there. If I had to do it again I would lay a plastic baggy over this part before tying the bag at the top to protect the gloss. In the end, you can only see them in the proper light and the right angle so this doesn't matter to me either.

*****What I have inside*****

EVGA 750i SLI FTW Motherboard
E8400 Intel Core 2 Duo (3Ghz)
EVGA 9800 GTX
4 Gigs Mushkin Ram (Two 2 gig sticks)
Two 500GB Seagate HD 7200rpm with 32mb cache
Silverstone 850W PSU with single 70amp 12v rail

*****In conclusion*****

With the minor things I have mentioned that bothered me, none of them have made me dissatisfied with the product. It has performed well and is very nice to look at. If you have the cash and need something stylish and roomy it is a great case to own.