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Cooler Master MasterCase Pro 3 Mini Tower Case

mATX (and below), Fans Included, Windowed Side Panel, Water Cooler Support, Upto 370mm GPU, No PSU

Cooler Master MasterCase Pro 3 Mini Tower Case
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£77.35 inc vat

£64.46 ex vat

You save £5.14

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Order Code: CM-MASTCP3

Manf.Code: MCY-C3P1-KWNN

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Delivered within 3-5 working days

More delivery options including Weekend, timed and European delivery are also available at the checkout.

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Cooler Master MasterCase Pro 3 Mini Tower Case overview

Make of It What You Will


A Smaller Case With Lots of Space


This new compact addition to the MasterCase line is built with the same FreeForm™ Modular System that defines the series. Customize and adjust your case via swappable aesthetics, adjustable layouts and intuitive thermal performance. Improved layout flexibility handles larger components and cooling systems within a discreet form factor.



A case meant for a smaller build that still packs a punch. Build the high performance PC you want in a tighter frame. Its streamlined design with steel and mesh makes this product incomparably stylish. It supports up to five fans, eight HDDs and two graphics cards.

Compact & Portable

Save space and easily transport your build with the MasterCase Pro 3. The reduced size and added top handles mean you don’t have to give your PC the awkward bear hug. Conveniently take your case to LAN parties, special events, and trade shows while still fitting the latest full-sized components.

Special Features


Remove the Partition Panel to add space for an additional graphics card.


Adjust the Sliding Clip & Click Panel for your needs: HDD cages, DIY cooling system, or remove it.


Remove the Front Cooling Bracket for convenient fan or radiator installation outside of the case.

Build a PC that Fits Your Needs.


With the MasterCase 3 Pro you have the freedom to build the Micro-ATX PC you want to at a manageable size. There is ample space for up to two full-sized graphics cards, six fans or liquid cooling radiators, and eight HDDs.

Model number MCY-C3P1-KWNN
Available Color(s) Exterior: Dark metallic grey
Interior: Black
Materials SECC, Plastic
Dimensions (WxHxD) 235(W) x 467(H) x 505(D) mm
Weight 9.1kg
M/B Type microATX, Mini-ITX
5.25" Drive Bays 0
3.5" Drive Bays 2
2.5" Drive Bays 2+2
I/O Panel 2x USB 3.0
1x Audio In & Out
Expansion Slots 5
Air Cooling Compatibility Top:
2x 120/140mm
2x 140mm
2x 120/140mm
Water Cooling Compatibility Top:
120/140/240mm radiator, max. 40mm thick w/o fans
120/140/240/280mm radiator, max. 40mm thick w/o fans
120/140mm radiator
Included Fans Front:
1x 140mm, 1200RPM, 24dBA, 55CFM
1x 140mm, 1200RPM, 24dBA, 55CFM
Dust Filters Front / Top / Bottom
Power Supply Type Bottom Mount
Standard ATX PS2 / EPS 12V
Maximum CPU Cooler Height 190mm
Maximum GPU/PCI Card Length 370mm (without cage)
258mm (with HDD cage)
Warranty 2 years
EAN Code 4719512053300
UPC Code 884102029417

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Delivery Options

Next Working Day Delivery

Get your order delivered the next working day for £5.99, available when ordering Monday - Thursday and before 17:00 on that day if the product is in stock and your payment has cleared.

Pre 12 Next Working Day Delivery

Get your order delivered the next working day before 12:00pm for £8.38, available when ordering Monday - Thursday and before 17:00 on that day if the product is in stock and your payment has cleared. Some orders if via PayPal and the first customer order may not clear in time.

Weekend Delivery - Saturday & Sunday

If you need your order at the weekend, for £9.98, you can specify the day you wish to have it delivered to you, Saturday or Sunday providing your order has been placed by 17:00 on the Friday before.

Economy Delivery

Economy delivery is available on all orders of any value being shipped within the UK.

About Coolermaster

Cooler Master was founded with the mission of providing the industry's best thermal solutions. Since its establishment two decades ago, the company has remained faithful to this mission, emerging as a world leader in products and services for companies dealing with devices where heat issues must be resolved.

Cooler Master's vast product range covers Cases, Power Supplies, Cooling units, Keyboards and more.

Reviews of the Cooler Master MasterCase Pro 3 Mini Tower Case