Cosmos SE Mid Tower Case

  • More aggressive
  • more furious - a sporty addition to the COSMOS series - the COSMOS SE. It features a classic supercar design with curved aluminum handles
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Stock Code: CA-337-CM

EAN: 4719512046197

MPN: COS-5000-KWN1

Manufacturer: CoolerMaster

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Product information:

Cosmos SE Mid Tower Case

More aggressive, more furious - a sporty addition to the COSMOS series - the COSMOS SE. It features a classic supercar design with curved aluminum handles. Behind the front mesh panel are two 120mm blue LED fans with a LED on/off function. Liquid cooling is the name of the game. It supports up to 3 radiators at once - 120 & 280 & 360mm (rear/top/front). The expandability is supports up to 8 HDDs/18 SSDs.

- Superior liquid cooling support: 120, 240, 280 and 360mm radiator; supports 3 radiators at once - 120+280+360mm.
- Supports up to 8 fans, including 4 installed fans – two front 120mm blue LED fans with LED on/off control, one top 140mm fan and one rear 120mm fan.
- Dual Super Speed USB 3.0.
- Great expandability with the support of up to 8 HDDs/18 SSDs
- Supports all high-end VGAs up to 395mm/15.5 inches long and CPU coolers up to 175mm/6.9 inches tall.
- Large cable management space - 34mm.
- Multiple removable dust filters (top, front, bottom, side panel) for improved system maintenance.
- Supercar inspired design with aluminum curve handles.

- Dimension (W / H / D): 263.8 x 569.4 x 524.4 mm
- Weight: 10.8 kg
- Material: Polymer, Steel, Aluminium, Mesh front bezel, Rubber
- Motherboard Type: ATX, Micro ATX, Mini-ITX
- 5.25" Drive Bay: 3
- 3.5" Drive Bay: 8
- 2.5" SATA HDD Bay: 18 (16 converted from 3.5'' Bays)
- I/O Panel: USB3.0 x 2, USB 2.0 x 2, Audio In and Out

Fan Bays: Top 120/140mm fan x 1 (installed)
- Front: 120mm Blue LED fan x 2 (Installed with LED on/off) or 140mm(optional)
- Rear: 120mm fan x 1 (installed)
- Side: 120/140mm fan x 1 (optional)
- HDD Cage: 120mm fan x 2 (optional)
- Expansion Slots: 7+2
- CPU Cooler Heigh: 175 mm
- Power Supply Standard ATX PS2

More links for "Cosmos SE Mid Tower Case"


Product Specification:

Case type
Form Factor
ATX, Micro-ATX, Mini-ITX
Side panel
Main colour
Accent colour
Noise dampening
Width (exact)
Height (exact)
Depth (exact)
200 - 300 mm
500 - 600 mm
500 - 600 mm
Weight (exact)
10 - 12 kg
USB 3.0
Audio output
Audio input
Internal 2.5" bays
Internal 3.5" bays
External 5.25" bays
PCI slots
Motherboard tray
Cable management
Front LCD/TFT display
Power supply
Power supply format
Power supply position
Rear Lower
Fans pre-installed
1x 140mm, 3x 120mm
120mm Fan
140mm Fan
Fan colour
Fan controller
Card reader
Front door
Position I/O
HDD anti-vibration
1x Single (120mm), 1x Dual (280mm), 1x Triple (360mm)

Customer review

67% (2)
33% (1)
0% (0)
0% (0)
0% (0)
Star Rating

Average customer rating

(from 3 customer reviews)
All Time (3)

Almost, but not quite, perfect!

Very impressed with this case but with just a couple of drawbacks you should consider when thinking about buying this.
Firstly it looks stunning, sure it's a personal thing, but it is very nice. Secondly, the cable management is brilliant, I've never built a PC that looks so neat, virtually all the cables are hidden. Word of advise though, put your 24-pin motherboard power connector in BEFORE you install the board. You'll struggle to get it to fit though the gap once the board is in the case.

The drawbacks come down to cooling... to install a second fan (or radiator) in the top of the case you can't use the top two 5.25" drive bays. Not a problem with three bays if you only have one Blu-ray/DVD drive to fit in... except the bottom bay is already blocked by one of the front intake fans. Another problem stems from the internal drive cages, they take up a HUGE amount of the internal space and block a good deal of the air flow. They also stop longer gfx cards from being installed. Fortunately you can remove the cages, but then you have the dilemma of where to install your HDDs.

It's all about compromise with this case, you can't have your cake and eat it. It is a mid tower case, so you have all the trade-offs associated with that, but at the same time, it's a really big and bulky case. I can't help but think they could have made a much better case if they'd thought about the internal layout a little more.

Overall build quality is great and the price is good for the size of this case. Just be aware of its limitations going in and you'll be fine!



Excellent case looks beautiful, has plenty of room for good wire management which is always a bonus, especially with a windowed case! the case fans are very quiet and effective! It is a shame about the fan overlapping a drive bay but it does not bother me! Cant wait to do water-cooling in this amazing case! All in all a fantastic case that does not break your bank, i would highly recommend it to anyone!



Well what can I say! Got this yesterday and quickly set about taking all the components from my xigmatek midi case. I took my time ensuring the cable management was all neat and tidy. Very impressed with the design and lay out inside and out. My only gripe is that it weighs an absolute ton, so with my bad back, its not moving from my desk... ever! Was going to get the CM Storm trooper, but was told it was out of stock, chose this instead and I am far from disappointed! Thanks OC for fantastic service as per usual.


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