Cooler Master MasterBox Q300L Mini Tower Case

BH #COBQ300LKN00 • MFR #MCB-Q300L-KANN-S00
Cooler Master MasterBox Q300L Mini Tower Case
Key Features
  • Micro-ATX and Mini-ITX
  • 1 x 3.5" Drive Bay
  • 2 x 2.5" Drive Bays
  • 4 x Expansion Slots
The MasterBox Q300L Mini Tower Case from Cooler Master supports Micro-ATX and Mini-ITX motherboards. The case features one 3.5" HDD drive bay, two 2.5" SSD drive bays, and four expansion slots. The I/O panel includes two USB 3.0 ports and audio in/out jacks, and it can be adjusted to six different locations, three options at each side. The Q300L supports GPUs up to 14.2" and CPU Coolers up to 6.2" tall. A 1.1" space behind the motherboard tray offers hidden cable management.
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$49.99
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Cooler Master MasterBox Q300L Overview

The MasterBox Q300L Mini Tower Case from Cooler Master supports Micro-ATX and Mini-ITX motherboards. The case features one 3.5" HDD drive bay, two 2.5" SSD drive bays, and four expansion slots. The I/O panel includes two USB 3.0 ports and audio in/out jacks, and it can be adjusted to six different locations, three options at each side. The Q300L supports GPUs up to 14.2" and CPU Coolers up to 6.2" tall. A 1.1" space behind the motherboard tray offers hidden cable management.

Special pattern on the dust filter creates a unique outlook for the chassis
The open design of the perforated front, top, and bottom guarantees excellent thermal performance
Edge-to-edge acrylic transparent side panel
The case can be put in vertical or horizontal position
UPC: 884102038006

Cooler Master MasterBox Q300L Specs

Compatibility
Motherboard SupportMicro-ATX, Mini-ITX
External Drive BaysNone
Internal Drive Bays1 x 3.5"

2 x 2.5"
Expansion Slots4 x Full Height
Maximum GPU Length14.17" / 360 mm
CPU Cooler Height6.18" / 157 mm
Supported PSU SizeATX
Maximum PSU Length6.30" / 160 mm
PSU Mounting LocationBottom
Cooling
Fan Mounting (Front)2 x 120 mm
Or
2 x 140 mm
Fan Mounting (Rear)1 x 120 mm
Fan Mounting (Side)None
Fan Mounting (Top)2 x 120 mm
Fan Mounting (Bottom)1 x 120 mm
Fans Included (Front)None
Fans Included (Rear)1 x 120 mm
Maximum Radiator Size (Front)240 mm
Maximum Radiator Size (Rear)120 mm
Fan Mounting (Internal)None
Filter LocationsBottom
I/O
Connections2 x USB Type-A (USB 3.1 / USB 3.2 Gen 1)
Audio Connections1 x 3.5 mm Input
1 x 3.5 mm Output
Display ConnectionsNone
Physical
Windowed PanelYes
MaterialPlastic, Steel
CertificationsCE, FCC, as per Manufacturer
Built-In LightingNo
Tool-Less DesignThumbscrews
Cable Management Space1.10" / 28 mm
Dimensions (W x H x D)9.06 x 14.88 x 15.24" / 230 x 378 x 387 mm
Weight8.16 lb / 3.7 kg
Warranty LengthLimited 2-Year Warranty
Packaging Info
Package Weight10.04 lb
Box Dimensions (LxWxH)18.1 x 16.9 x 10.8"
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YOUR RECENTLY VIEWED ITEMS

Does this case come with fans?

Does this case come with fans?
Asked by: Dylan
yes, it comes with fans. I liked the way it looked. it comes with good ventilation and dusts screens. but it did not have a bay for a cd rom player.
Answered by: Anonymous
Date published: 2019-08-03

How many fans can I install into this?

How many fans can I install into this?
Asked by: Owen
I personally put 3 more (120mm) in addition to the one that is included for a total of 4. I have two in the front and one up top. The included fan is in the back.
Answered by: Adam
Date published: 2020-12-21

Does this case come with the handle shown in the ...

Does this case come with the handle shown in the picture?
Asked by: Malone
No, the handle for the Cooler Master MasterBox Q300L Mini Tower Case BH #COBQ300LKN00 is sold separately and not included.
Answered by: Miguel
Date published: 2020-12-21

Can the feet be removed?

Can the feet be removed?
Asked by: Chris
Yes, they can be removed. They are attached to a small panel that can be removed when changing the orientation of the device.
Answered by: Darius
Date published: 2021-02-11

Does this case come with the handle?

Does this case come with the handle?
Asked by: Malone
No, the Cooler Master MasterBox Q300L Mini Tower Case BH #COBQ300LKN00 does not include handles. They are sold separately.
Answered by: Miguel
Date published: 2020-12-21

There is a handle attached to the top of the case ...

There is a handle attached to the top of the case in the 5th picture under product images, is it included?
Asked by: Malone
No, the Cooler Master MasterBox Q300L Mini Tower Case BH #COBQ300LKN00 does not include the handle. The handles are sold separately.
Answered by: Miguel
Date published: 2020-12-21

Could you pls tell me box or case weight

Could you pls tell me box or case weight
Asked by: julio
The case itself weighs 8.16 lb / 3.7 kg. The shipping weight is 10.04 lb / 4.55 kg.
Answered by: Gregorio M.
Date published: 2020-11-20

Can you fit a ASUS ROG Strix NVIDIA GeForce RTX ...

Can you fit a ASUS ROG Strix NVIDIA GeForce RTX 2060 EVO OC Edition in this case q300l MATX?
Asked by: Cryptic
Yes, this case offers enough clearance to fit the ASUS ROG Strix NVIDIA GeForce RTX 2060 EVO OC
Answered by: jaime
Date published: 2020-08-03
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