Images are for illustrative purposes only.

Cooler Master N300

ATX/Micro-ATX, USB 2.0, USB 3.0, Audio I/O, 5.2 kg

More details


Out of Stock

The N300 is a member of Cooler Master's N Series computer cases, featuring a mesh front panel that provides modern styling ... Read More

Free tester with every 5 boxes of cable

New product

£0.00 Inc. VAT


This product is currently out of stock. We update our stock levels throughout the day so check back soon for more information.
  • More Info

  • Details

  • Spec Sheet

The N300 is a member of Cooler Master's N Series computer cases, featuring a mesh front panel that provides modern styling and optimized ventilation. Water cooling is fully embraced as the N300 supports a 240mm radiator for supreme cooling performance in a small package. The N300 almost makes a great gaming build as it supports high end graphics cards up to 12.6"/320mm. The N300 also includes a windowed side panel to showcase your build and a dust filter under the power supply for easy maintenance.


N300 features an impressive array of mesh for outstanding air intake to keep your system running quiet and cool.


Install one 120 or 140mm fan on the left side panel for additional cooling support for long graphics cards up to 320mm / 12.6 inch


Flexible mounting options including support for a 240mm radiator along the right side and 120mm at the rear.


Room for up to 8 HDDs, or swap a couple out for some SSDs, or just mount the SSDs on the side or bottom, whatever works for you.
Audio inputYes
Built-in speaker(s)No
Colour of productBlack
Depth491.5 mm
Form factorMidi-Tower
Maximum front fans2
Maximum rear fans1
Maximum top fans2
Number of 2.5" bays1
Number of 5.25" bays2
Power supply includedNo
Power supply locationBottom
Rear fans installed1x 120 mm
Side windowNo
Suitable forHome/Office
Supported hard disk drive sizes2.5, 3.5 "
Supported motherboard form factorsATX, micro-ATX
USB 2.0 ports quantity2
USB 3.0 ports quantity1
Weight5200 g
Width190 mm
ManufacturerCooler Master
Cable Monkey Reviews
Excellent Thanks...
Really helpful employee answered my questions and assured me I could return product if it didn't work as successfully as I hoped. I did later need to return which meant paying £10 as through best...
The service I received from Netstore Direct was excellent from start to finish. The products were exactly as stated on the website. The purchasing process was simple and I was kept well informed at...
all good quick delivery
Such a good company!!!!!!!!!! Amazing sevice
Very good service and fast delivery. A*
Always competitively priced and good delivery service. Products are of a good standard and were recently very helpful on the phone when I called for advice.
Excellent quick service
easy to navigate website, keen pricing and fast delivery. would recommend to friends.
Used this company several times now and will continue to do so. Good products at a good price and excellent service and delivery.
very happy
Prompt and secure delivery. I will be ordering more products such as patch panel, network switch, rack...etc. I will be calling through for advice so hopefully they are knowledgeable over the phone!
Very Fast Delivery, Products Exactly what expected and of a good quality standard. Delivery Prices may be a little too high but I understand that this company normally ships large shipments anyway.
Easy to order - so website was great. Next day delivery and when I had a query they managed to answer it immediately via email.Overall great service
product was on stock, with competitive price
Swift response to order
The goods were in stock and they were delivered on time.Many thanks, great service.Kind regardsDavid
Great, fast service as usual.
Put the effort in to try and help as much as possible.
They did what they said. Items were in stock and arrived on next day delivery. Excellent service. Will use again

30 other products in the same category

Viewed products

Untitled Document


New products