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Coolermaster N300 Mid Tower Case

Cooler Master N300 Black Mid Tower Performance Case w/o PSU

Cooler Master
Scan code: LN55489 Manufacturer code: NSE-300-KKN1 Request call
In stock
Buy Now, Pay Later with a 10% deposit. Or spread the cost of your finance over 24-48 months.
High End
Delivery options £5.48 By DPD On 5th Dec 2016 DPD Delivered to your specified address. Receive SMS with one-hour delivery window. £4.79 Collect from local shops UPS and DPD Pickup Collect your parcel from your newsagents, petrol stations and convenience stores. Free Collect Instore Q-Collect Place your order online and collect from our Bolton store with Q-Collect. Weekend, timed and European delivery options are available at checkout Scansure protection Scansure Protect against installation damage for 28 days.More
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Product Overview The new Cooler Master N300 is a mid-tower designed for optimum cooling. There are four models to choose from by single / dual USB 3.09 support andf side panel window. To keep constant cooling, the front panel is covered by mesh, and thanks to the SickleFlow fans, N300 Generates extreme high airflow and keep silence for long-time operation.

If you prefer liquid cooling solutions, installing 240mm or 120mm radiators in N300 won't be a problem as well. The 240mm radiator can be installed at the top or on the right side, and the 120mm one - in the rear. Additionally, N300 supports up to e8 HDDs and high-end graphics cards up to 320mm for plenty of expansion.

• Full mesh on the front panel
• Supports a 240mm liquid cooling radiator or two 120mm fans on the right side / at the top
• Supports a 120mm liquid cooling radiator in the rear
• Supports high-end graphics cards up to 320mm / 12.6 inch, including NVIDIA GTX 690 & AMD HD 7990
• Supports up to 8 HDDs (2 tool-less)
• Dust filter under the PSU for easy maintenance
• Accessible power switch button with blue LED illuminated when the power is on
• Super Speed USB 3.0 Support
• Includes two SickleFlow 120mm fans arranged for optimum airflow in the front and rear with support for up to 8 fans
• Can install one optional 120/140mm fan on the left side panel to cool the graphics cards Features
Case Edition N300 KKN1
Case Form Factor Mid Tower
Motherboard Form Factor
  • ATX
  • Micro ATX
Material Polymer
Front/ Side/ Top Panel
  • 1 x Headphone
  • 1 x Mic In
  • 2 x USB 2.0
  • 1 x USB 3.0
Drive Bays
  • 1 x 2.5" Internal
  • 1 x 3.5" External
  • 7 x 3.5" Internal
  • 2 x 5.25" External
Expansion Slots 7
Fan Bays
  • 3 x 120/140 mm
  • 5 x 120mm
Fans Included 2 x 120mm
Front Radiator Compatibility  
Top Radiator Compatibility  
Bottom Radiator Compatibility  
Rear Radiator Compatibility  
Side Radiator Compatibility  
Window No
Power Supply Form Factor ATX
Max PSU Length  
Max CPU Cooler Height 164 mm
Max VGA Card Length 320 mm
Colour Black
Dimensions 190 x 426 x 491.5 (WxHxD mm)
Weight 5.2 kg (Approx)

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
12 months
Manufacturer Contact Details
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Rated 4.3 out of 5 by 3 reviewers.
Rated 4 out of 5 by Good budget case with loads of fan positions I bought this case to replace an Antec case for my son's PC. One criteria was that it had to have 2 USB2 sockets at the front as on the Antec case. Another was a front USB3 socket in case I decide to upgrade the motherboard from the currently elderly Asus P5KC which has no USB3 socket. Unfortunately only one of the front USB2 sockets recognises USB sticks. The other is only useful as a 5V power source which my son uses to keep his mobile phone charged. I need to investigate this fault further. The case is bigger than the one it replaces and installation of components was straightforward. I like the PSU located at the bottom layout and tool free fittings for optical drives and HDD's. The case came with one inlet and one outlet fan but has room for up to 6 more so effective cooling is easy to achieve. The case has mesh walls all round and so there's no scope with no noise insulation sheets so the PC is somewhat noisier than when it was in the Antec case with same fan arrangement. The non replaceable rear blanking strips are a bit of a pain. Remember to double check which ones to remove which you install your graphics card. 23 October 2014
Rated 5 out of 5 by Does what it needs to This is a great sized case that allows pretty much anything you need to be fitted in it and comes with two factory set fans that are not too loud in normal use. (1 front, 1 back) If pushed to a niggle it would be nice that there were some kind of dust filters pre-installed on the side and top vents, especially if they are not being used. 01 July 2014
Rated 4 out of 5 by Great budget case Typical of a cooler master product. Very well designed, nice to look at and very functional. Excellent value for money. Easy to work with, reasonable options for cable management. Little flexible but for the price what would you expect. It will take enclosed loop cooling but if you plan to use a 240mm setup, check power and ram for clearance. Else modifications needed. 05 April 2014
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Questions & Answers
Coolermaster N300 Mid Tower Case
Coolermaster N300 Mid Tower Case