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Cooler Master Masterbox Q300l Micro-ATX Chassis

Micro-ATX (And Below), 4 Expansion Slots, Windowed Side, Watercooling Support, GPU up to 360mm, CPU up to 157mm

Cooler Master Masterbox Q300l Micro-ATX Chassis
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£47.03 inc vat

£39.19 ex vat

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Order Code: CM-Q300L

Manf.Code: MCB-Q300L-KANN-S00

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Express Delivery

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

Low Rate 14.9% Finance

Spread the cost of your purchase with a low rate 14.9% APR over 12, 24, 36 or 48 months.

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In the unlikey event that you are unhappy with your purchase, simply return it to us within 14 days for a refund.*

*Excludes delivery costs. Item must be in original condition, not applicable to opened Software/Licenses or customised items.

Full details

If you are buying for work or your business we offer a range of benefits to help, such as:

  • Credit Account Facilities (subject to approval)
  • ISO 9001/14001 Certification
  • Business Leasing
  • Members of major purchasing frameworks
  • Microsoft Gold Partner
  • VMWare Education Specialist
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Cooler Master Masterbox Q300l Micro-ATX Chassis overview

CHOOSE YOUR STYLE - 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, it offers 28mm wide and spacy room for hidden cable management.

EXCELLENT THERMAL 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.

Product Name MasterBox Q300L
Product Number MCB-Q300L-KANN-S00
Available Color Black
Materials Steel, Plastic
Dimensions (LxWxH) 387 x 230 x 378mm
Motherboard Support Micro-ATX, Mini-ITX
Expansion Slots 4
Drive Bays 5.25" 0
3.5" HDD 1
2.5" SSD 2
I/O Port USB 3.0 x 2, Audio In / Out
Pre-installed Fan(s) Front N/A
Rear 120mm x 1
Fan Support Front 120 / 140mm x 2
Top 120mm x 2
Rear 120mm x 1
Bottom 120mm x 1
Radiator Support Front 120mm x 1 / 240mm x 1
Rear 120mm x 1
Clearances CPU Cooler 157mm
PSU 160mm
GPU 360mm
Cable Routing Behind MB Tray 28mm
Power Supply Support Bottom mount, ATX PS2
EAN Code 4719512065488
UPC Code 884102038006

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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 a mission to create the best thermal solution in the market. Being a leader in innovation, design and production of computer hardware, Cooler Master has grown to be the industries leaders for PC hardware since its inception two decades ago.

The company has remained true to value creating the best thermal solutions while also expanding and dominating in Cases, Power Supplies, Peripherals and more.

Reviews of the Cooler Master Masterbox Q300l Micro-ATX Chassis