MasterCase 5
with FreeForm™ Modular System
The MasterCase 5 Series
At heart, the MasterCase 5 advocates a new relationship that binds component makers and users closer together. Its elegantly smooth, flexible FreeForm Modular System supports multiple outlooks, allowing you to upgrade rather than entirely replace your case as your needs change over time. Go with either basic dual top handles and standard door of the MasterCase 5 or an elevated mesh top cover of the MasterCase Pro 5.
FreeForm™ Modular System
We want you to have absolute control over how your case looks and functions. The FreeForm™ Modular System of the MasterCase 5 lets you adjust the exterior structure and aesthetic via a range of replacement panels and doors. Each choice changes the look and feel of the case, but also the flexibility of the interior layout.


with external modularity


the interior layout


to meet your needs

Customize with
External Modularity
Easily customize your case by adding a top cover and water bracket for a new look along with liquid cooling radiator support, freeing up space inside the case. And if you want to show off your system, a window side panel is also available. These options are included in MasterCase Pro 5 version or available separately.

Adjust Internal Layout Clip-and-Click Panel

But this isn't just about aesthetics. Each decision opens new possibilities.
Leveraging our unique clip-and-click panel, FreeForm lets users vertically adjust or entirely remove your optical disk drive (ODD) and HDD via sliding locks so intuitive you'll play with your configurations just for fun. Well, some people will. Just click-in the cages, and adjust the height to suit your needs. Position them at the top to allow room for up to three extra-long graphics cards, or retain only the bottom positioned cages to add a front-mounted radiator for even more cooling options.
  • Integrate replacement accessories like:
  • Fan brackets
  • Water cooling reservoirs
  • GPU support brackets

Slip-and-Clip Pockets

The first Cooler Master case to incorporate two easy to install slip-and-clip solid-state drive pockets (2.5") with four easy mounting positions. Showcase them on the partition panel or hide them behind the motherboard tray for a cleaner look.
A.Two behind the motherboard tray
B.Two on top of power supply partition

Unmatched Ventilation

FreeForm enables the option to install three front-mounted 140mm fans and a 280mm radiator for unmatchable ventilation due to a unique facility to horizontally shift the bottom-mounted hard disk drives. There's also support for up to six 140mm fans through the case, unique for a mid-sized tower.
Show Us What You Got
Post or send us your MasterCase projects
FreeForm extends beyond the case to include all the support you need in terms of selecting
and purchasing components through a range of accessories to truly help you Make It Yours.
MasterAccessories List
Each case comes with a different number of MasterAccessories, from our MasterCase 5 with its basic package, to our MasterCase Maker 5 coming with a wider range of accessories. Buying a basic package always leaves you freedom to enhance your case by buying additional accessories in the future.


Novice builders can start with just the right specs


Pro builders that want to push their systems to the fullest


Enthusiasts that look for state-of-the-art technologies


Gamers looking for high turbo performance

(System pictures for reference only )
Top Cover  
Liquid Cooling Bracket  
Window Side Panel
Additional Drive Cages    
Front Door Panel    
Fan Controller    
LED Strip    
LED Light Controller    
MasterCase Graphics Card Holder      
Dual Tempered Glass Panels      
  MasterCase 5

MasterCase 5

MasterCase Pro 5

MasterCase Pro 5

MasterCase Maker 5

MasterCase Maker 5

Model Number MCX-0005-KKN00
MCY-005P-KWN00 MCZ-005M-KWN00
Dimensions 512(L) x 235(W) x 548(H) mm 512(L) x 235(W) x 548(H) mm 528.6(L) x 235(W) x 548(H) mm
Net Weight 10.6 kg / 23.4 lb 10.7 kg / 23.6 lb 12.3 kg / 27.2 lb
M/B Type ATX, mATX, Mini-ITX ATX, mATX, Mini-ITX ATX, mATX, Mini-ITX
5.25" Drive Bays 2 2 2
3.5" Drive Bays 2 5 5
2.5" Drive Bays 2+2 2+5 2+5
I/O Panel USB 3.0 x2,

Audio In & Out (supports HD Audio)
USB 3.0 x2,

Audio In & Out (supports HD Audio)
USB 3.0 x1,
USB 3.0 (type C) x1,
USB 2.0 x2,

Audio In & Out (supports HD Audio)
Expansion Slots 7 7 7

Cooling Support

Front 140mm x1

120/140mm x2
140mm x2

120/140mm x1
140x25mm fan x2, 1200RPM

140 x 25mm fanx1
Rear 140mm x1
140mm x1
140x25mm fan x1, 1200RPM

120mm fan x1
Top 120/140mm x2
120/140mm x2
120/140mm fan x2

Radiator Support

Front 240mm, 280mm
(up to 40mm thickness without fan)
240mm, 280mm
(up to 40mm thickness without fan)
120mm, 140mm, 240mm, 280mm
(requires removal of ODD cage)
Rear 120mm, 140mm 120mm, 140mm 120mm, 140mm
Top N/A 240mm / 280mm
(max. 297mm radiator length)
120mm, 140mm, 240mm, 280mm
(max. 297mm radiator length)
Lighting Support N/A N/A Red LED strip x 1

4 LED connections available
Power Supply Bottom Mount, ATX PS2 Bottom Mount, ATX PS2 Bottom Mount, ATX PS2
(maximum length: 200mm)

Compatibility (Maximum)

VGA Card Length 412mm/16.2inches
(without 3.5" HDD cage)

(with 3.5" HDD cage)
(without 3.5" HDD cage)

(with 3.5" HDD cage)
412mm/16.22 inch
(without 3.5" HDD cage)

296mm/11.7 inch
(with 3.5" HDD cage)
CPU Cooler Height 190mm/7.5inches 190mm/7.5inches 190mm/7.48 inch
Model Number

MCX-0005-KKN00 (not windowed)
MCX-0005-KWN00 (windowed)

Available Color Dark metallic grey exterior with black interior
Materials SECC, Plastic
Weight 10.6 kg / 23.4 lb
Dimensions All 512(L) x 235(W) x 548(H) mm
Body 460(L) x 235(W) x 460(H) mm
M/B Type ATX, microATX, Mini-ITX
Expansion Slots 7
Drive Bay 5.25" ODD 2
3.5" HDD 2
2.5" SSD 2 + 2
I/O Panel USB 3.0 x 2, Audio In & Out (supports HD-Audio)
Cooling Support Front 140mm x1 (pre-Installed)
120/140mm x2 (optional)
Rear 140mm x1 (pre-Installed)
Top 120/140mm x2 (optional)
Radiator Support Front 240mm/280mm (up to 40mm thickness without fan)
Rear 120mm/140mm
Top N/A
CPU Air Cooling Support 190mm/7.5 inch
VGA Card Support w/ 3.5" HDD Cage 296mm/11.7 inch
w/o 3.5" HDD Cage 412mm/16.2 inch
Cable Management 25mm
Dust Filters Front/Top/Bottom
Power Supply Type Bottom Mount, ATX PS2
EAN Code 4719512048283 (MCX-0005-KKN00)
4719512052488 (MCX-0005-KWN00)
UPC Code 884102027246 (MCX-0005-KKN00)
884102028595 (MCX-0005-KWN00)
Awards & Reviews