CoolerMaster MasterBox Q300L Mini Tower Case, 2x 2.5" Drive Bays, Black
See all CoolerMaster items

CoolerMaster MasterBox Q300L Mini Tower Case, 2x 2.5" Drive Bays, 4x Expansion Slots, Black

SKU: CMMCBQ300LKA

This item is no longer available.

Recommended Alternatives

CoolerMaster MasterBox NR400: Picture 1 regular
Cooler Master MasterBox NR400 Micro-ATX Tower Case
$79.99
CoolerMaster MasterBox NR200: Picture 1 regular
CoolerMaster MasterBox NR200 Mini-ITX Tower Case, Black
$89.99$62.29
CoolerMaster N200: Picture 1 regular
Cooler Master N200 Mid-Tower Computer Case, Midnight Black
$69.99
CoolerMaster TD300 Mesh: Picture 1 regular
CoolerMaster TD300 Mesh Tempered Glass Micro-ATX Mini-Tower Case, Black
$89.99
See More Recommendations
Overview
Compare
Specs
Q&A

Questions & Answers

Shopper : Why Did You Choose This?olman o : I LIKE

Reviews about this item

Review Summary

CoolerMaster MasterBox Q300L Specifications

  • Size

    Mini Tower

  • Materials

    Steel, Plastic

  • Motherboard Support

    Micro ATX, Mini ITX

  • Expansion Slots

    4

  • 5.25" Drive Bays

    0

  • 3.5" Drive Bays

    1

  • 2.5" Drive Bays

    2

  • I/O Panel

    2x USB 3.0, Audio In & Out (supports HD audio)

  • Pre-Installed Fans

    Rear: 1x 120mm

  • Fan Support

    Front: 2x 120mm/140mm
    Top: 2x 120mm
    Rear: 1x 120mm

  • Radiator Support

    Front: 120mm, 240mm
    Rear: 120mm

  • Clearance

    CPU Cooler: 159mm
    GPU: 360mm

  • Power Supply Support

    Bottom Mount, ATX PS2 / EPS 12V

  • Dust Filters

    Top, Front, Bottom

  • Dimensions (LxWxH)

    387 x 230 x 381mm (15.24 x 9.06 x 15.00")

  • Weight

    3.7kg (8.16 lbs)

  • UPC Code

    884102038006

About CoolerMaster MasterBox Q300L

Patterned Magnetic Dustfilters
Special pattern on the dust filter creates a unique outlook for the chassis.

Modular I/O Panel
The I/O panel can be adjusted to six different locations. On both side of the body you can install the I/O panel at the front, top or bottom.

Multiple Positioning Options
The case can be put in vertical or horizontal position.

Edge-to-edge Side Panel
Show off your build through the full size transparent side panel.

Clean Routing Space
Behind the motherboard tray, 28mm of space is offered for cable management.

Performance
The open design of the perforated front, top and bottom guarantees excellent thermal performance

Fan and Radiator Support
The front supports up to two 140mm fans and up to a 240mm radiator. The rear supports a 120mm fan or radiator and the top two 120mm fans. All to ensure you don't have to compromise on performance.

Main Components Clearance
The MasterBox Q300L case supports CPU coolers up to a height of 159mm, graphics cards up to a length of 360mm and power supplies up to a length of 160mm.

Join VIP PRO

2 Day Delivery on thousands of items!

Sell or Trade your Gear

Get started in 3 easy steps

What's in the box:

  • CoolerMaster MasterBox Q300L Mini Tower Case
  • CoolerMaster 2 Year Limited Warranty