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Cooler Master N300 (KKN1) Mid Tower PC Case - Black
PC cases
Review Cooler Master N300 (KKN1)
Buy Cooler Master N300 (KKN1)

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Cooler Master N300 (KKN1)

Mid Tower PC Case - Black

Last price 69€95
Holy Moly!
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Overview
An inexpensive case with great cooling potential

The Cooler Master N300 case is designed for optimal cooling, including watercooling. In addition, its large interior space offers a wide range of possibilities. An ideal purchase for a high-performance configuration with high-performance cooling!

The Cooler Master N300 supports up to 8 fans. It comes with 2 pre-installed SickleFlow fans for powerful airflow. If you prefer liquid cooling solutions, you will be able to install a 120 or 240 mm radiator!

Main features:
  • Mid tower case for ATX or Micro ATX motherboards, with mesh front panel
  • 2 x 120mm SickleFlow fans included (supports up to 8 fans)
  • 120mm or 140mm side fan slot for improved graphics card cooling
  • 120 or 240 mm radiator can be installed on the right side (for watercooling)
  • Allows installation of up to 8 hard drives (2 of which can be mounted without tools)
  • 1 USB 3.0 port on the front
  • Removable dust filter under the power supply for easy maintenance
  • Compatible with high-end graphics cards up to 320mm in length (including NVIDIA GTX 590 and AMD Radeon HD 7990)
  • Compatible with CPU fans up to 164 mm in height
Specifications
Select your criteria

General information

Product name

 Cooler Master N300 (KKN1)

Brand

 Cooler Master Ltd

Model

 NSE-300-KKN1

Main characteristics

Graphic card max. length

 320 mm

Max height CPU fan

 164 mm

Power supply max. length

 160 mm

Power format

 ATX/EPS

Case format

 Mid tower

Use

 Office
Gamer

Material

 Steel

Motherboard format

 ATX
Micro ATX

Power supply supplied

 No

Design

Case color

 Black

Front color

 Black

Dust filters

 1

Glass

 No

LED RGB

 No

ARGB LED

 No

Water cooling compatible

 Yes

Expansion slots

Number of PCI slots

 7

Low profile

 No

Number of visible 3.5" slots

 1

Number of invisible 3.5" slots

 7

Number of 2.5" slots

 1

Number of 2.5"/3.5" slots

 0

Number of visible 5.25" slots

 2

Number of invisible 5.25" slots

 0

Number of Slot-in slim 5.25'' slots

 0

Number of Slim 5.25'' slots

 0

Front connectivity

Location of expansion ports

 Top

Connector(s) available

 1 X USB 3.0
2 X USB 2.0
1 X Microphone (3.5mm Jack Female)
1 X Headphone (3.5mm Jack Female)

Cooling

Number of rear fan(s) slots

 1 X 120mm

Quantity of rear fan(s) supplied

 1

Number of front fan(s) slots

 2 X 120mm

Quantity of front fan(s) supplied

 1

Number of side fan(s) slots

 2 X 120 or 140mm
2 X 120mm

Quantity of side fan(s) supplied

 0

Number of above fan(s) slots

 2 X 120mm

Quantity of above fan(s) supplied

 0

Water cooling

AIO radiator compatibility

 120mm radiator
240mm radiator

Physical characteristics

Width

 190 mm

Height

 426 mm

Depth

 491.5 mm

Weight

 5.2 kg

Volume

 39.8 l

Warranties

Commercial warranty

 Seller 3 years

Legal warranty

 See terms & conditions

See all Cooler Master Ltd products

See Cooler Master Ltd PC cases section

Product referenced on 21 Jun 2013

Customer reviews
Global rating
8/10
based on 16 reviews Editorial and moderation guide
  • 63%
    10 reviews
  • 25%
    4 reviews
  • 6%
    1 review
  • 0%
  • 6%
    1 review
  • by Flipper095
    Posted on 17 Feb 2021
    Bought on 12 Feb 2021 from LDLC
    Number of reviews: 11 Average rating: 6

    Fair

    The weight and the brand Cooler Master let us think that the hardware was serious, and the disappointment is great. The screws and bolts are catastrophic and I had to replace everything. The 3.5 discs with tool-less fasteners are well designed, but for the 2.5 discs, you'll have to tinker or buy additional hardware. One of the last models to accept a DVD drive, which is why I chose it, and that too is well done. The fans are useless because they have meshes on all sides, and the air gets through as much as the noise. For 50€ OK, for 70€ not.

    Review automatically translated
  • by ZABR
    Posted on 26 Dec 2020
    Bought on 4 Dec 2020 from LDLC
    Number of reviews: 12 Average rating: 9

    Standard housing to be improved

    The pluses :
    - Functional
    - Nice mesh
    - Numerous 3.5" slots with 3 quick release clips to best fit your cable length
    - Two large fans included
    - Ventilated top for watercooling (not visible on the pictures)
    - Vented on the bottom for non-fanless power supplies (not visible on the pictures)
    - SATA connection proven to be much easier on the axis of the case than on the side (ex: Fractal Design Core 2500)

    Minus :
    - Sloppy manufacturer: a door screw was forced and the door deformed (obvious 1mm opening corrected by tinkering), and a big 30cm grey exterior trace that doesn't go away
    - Horribly difficult to tear off the front panel: I had to take a tool, damage my finger and just miss tearing off the front USB ports
    - The 2 horizontal SATA ports on my motherboard are unusable because of the shape of the metal sheet (straight wire) or the graphics card in front (bent wire)
    - The only position of the SSD is too low for the power cable unless it is terminal or dedicated
    - Why is there still an unwired front slot for a USB socket?
    - Price waltz for this average but effective product

    Review automatically translated
  • by Manu
    Posted on 4 Feb 2020
    Bought on 3 Jan 2020 from LDLC
    Number of reviews: 13 Average rating: 9

    Very good box for the price

    With a contained size, this tower allows the passage of large ventirads such as the Noctua NH-U12S and its 158mm height as well as graphics cards of all formats (by sacrificing a few hard disk bays). It is necessary to make the connections and the assembly in the right order (hard disk drive before the graphic card for example) otherwise you will have to reassemble some elements (it happens to very good people you know ^^).

    In the end, the result is very satisfying, for those who want a sober tower with a reasonable budget.

    Finally, a little advice to have an "optimal" ventilation, in order to fan all the disk bays, the purchase of an additional 120mm fan will be perfect to support the one already provided on the front (a 140mm fan is possible but it does not cover the whole height and condemns the installation of 2 120mm fans).

    Review automatically translated
  • by NicolasH
    Posted on 3 Sep 2019
    Bought on 5 Aug 2019 from LDLC
    Number of reviews: 2 Average rating: 9

    Very functional and spacious. Allows for clean assembly.

    Very happy with my purchase, the case allows for proper cable routing.
    The front panel requires a bit of roughing it, but it went well.
    Only two minor negative points:
    - This is the model with only 1 USB3 port, so you "lose" a USB3 port on the front.
    - The PCI-E port brackets have to be removed from the backplane. If you remove a PCI-E card, it leaves an unsightly hole.

    Review automatically translated
  • by Anonymous
    Posted on 17 Mar 2019
    Bought on 21 Feb 2019 from LDLC
    Number of reviews: 1 Average rating: 8

    Very good box for an affordable price

    For 50€, you have a good case, very well ventilated (up to 9 fans ^^)
    Two fans are provided (quite noisy though, but very efficient).
    A dust filter is present for the power supply, but I doubt that it is effective given the size of the mesh...
    There is only one USB 3.0 port, although the cable can carry two.
    I couldn't figure out how to remove the front panel.
    The structure is quite flexible, the case is not made to be carried often).
    The case itself is relatively light.
    It comes with all the necessary screws and bolts!

    Review automatically translated
  • by Adrien N.
    Posted on 17 Dec 2017
    Bought on 14 Dec 2017 from LDLC
    Number of reviews: 4 Average rating: 9

    Very good box

    Very good box which replaces the "Elite RC - 310" of the same brand.
    The pluses :
    - Slot for 8 fans, enough to create a real tornado
    - Slot for 8 3.5" racks
    - Enough to fit an SLI without worries
    The minuses :
    - the 2.5 slot at the bottom of the case => impossible to connect the sata power supply...
    - Case tends to vibrate when 8 3.5" hard drives are used (due to the numerous ventilation slots)

    I'm just taking off 1/2 star for the 2.5" slot which is badly designed.
    Other than that it is really perfect.

    PS: for an AIRcooling configuration, the flow management inside the bug is a real headache.

    Review automatically translated
  • by Anonymous
    Posted on 1 Nov 2017
    Bought on 31 Aug 2017 from LDLC
    Number of reviews: 1 Average rating: 10

    top of the line

    A great box, I bought it for an office configuration for the moment but with the optics of up in gamer, the place is impressive and offers us a great facility to install any type of component, a super reactivity of the service LDLC

    Review automatically translated
  • by Erwan
    Posted on 13 Jul 2017
    Bought on 1 Jul 2017 from LDLC
    Number of reviews: 3 Average rating: 9

    Good box

    I bought this box to fit my new setup, and for the price, it's great.

    Only the management cable is a bit of a hassle but with a bit of imagination it all fits perfectly.

    I highly recommend it.

    Review automatically translated
  • by Thomas B
    Posted on 23 May 2017
    Bought on 1 May 2017 from LDLC
    Number of reviews: 12 Average rating: 9

    Very functional case

    Personally, I appreciate this kind of sober and functional case.

    The + : 1 USB 3 socket on the front, spacious, power supply in low position

    The - : the 2.5" slot is not really usable in the bottom of the case (impossible to connect the SATA power plug on my SSD, I had to buy a small 3.5" adapter)

    Review automatically translated
  • by Vincent D
    Posted on 19 Apr 2017
    Bought on 9 Apr 2017 from LDLC
    Number of reviews: 36 Average rating: 9

    Super

    A great box, I bought it for an office configuration for the moment but with the optics of up in gamer, the place is impressive and offers us a great facility to install any type of component, a super reactivity of the service LDLC received in 2 days!

    Review automatically translated
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