1. About the Masterbox K500L...
  2. PC Case Overview- External
  3. PC Case Overview- Internal
  4. Test Setup,Testing Method and Results
  5. Conclusion
  6. Online Purchase Links

Disclosure: The Masterbox K500L PC case is loaned by Cooler Master and returned after the review is completed.

About the Masterbox K500L…

The Cooler Master Masterbox K500L is a PC case expected to be somewhere before or between the Cooler Master Masterbox MB500, depending on what you want and can pay for. The comparison is made with the Masterbox MB500 because that’s what it is. The main difference is the lack of additional features and different front panel design. There are also some minor differences such as the installation of the front panel I.O- beauty is in the eyes of the beholder.

Packaging and Contents

Nothing really new for a case of such class- a brown box with specs listing. The K500L is protected by two foam blocks and a plastic wrap. The contents are bone-dry bare basic- just screws and cable ties. You get a couple of reading materials and that’s it.


Product NameMasterBox K500L
Product NumberMCB-K500L-KNNN-S00MCB-K500L-KANN-S00
Available ColorBlack
MaterialsSteel, Plastic
Left Side PanelSteelAcrylic
Dimensions (LxWxH)491 x 200 x 451mm491 x 210 x 455mm
Motherboard SupportATX, Micro-ATX, Mini-ITX
Expansion Slots7
Drive Bays5.25″N/A
3.5″ HDD2 (Max. 2)
2.5″ SSD1 (Max. 6)
I/O PortUSB 3.0 x 2, Audio In / Out
Pre-installed Fan(s)Front120mm x 2 Red LED fan
Rear120mm x 1 black fan
Fan SupportFront120mm x 3 / 140mm x 2
Top120mm x 2
Rear120mm x 1
Radiator SupportFront120/140/240/280mm
ClearancesCPU Cooler160mm
Cable RoutingBehind MB Tray15-23mm
Dust FiltersFront, Top, Bottom
Power SupplyBottom mount, ATX
EAN Code47195120701474719512071359
UPC Code884102042652884102043857

There are two sub-variants in the Masterbox K500L- naturally the second is with the sidepanel. Not sure why it has the extra 5mm height. The case allows you to install radiator size up to 280mm towards the front.

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