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Overview

Cooler Master MasterBox Q300L Micro-ATX tower with magnetic dust filter and transparent acrylic side panel. Adjustable I/O panel in 6 locations, supports standard ATX PSU, fully ventilated airflow design. Black.

Cooler Master MasterBox Q300L Micro-ATX Tower, Magnetic Dust Filter, Transparent Acrylic Side Panel, Black

Model: MCB-Q300L-KANN-S00
Web Code: 20224131
Sold and shipped by | 4.3 seller rating (259 reviews)

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Seller Return Policy

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Warranty Information

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • 1 x Cooler Master MasterBox Q300L Micro-ATX Computer Case (Black), Mounting hardware and screws, User manual

·Adjustable I/O Panel: I/O panel can be positioned in 6 different locations; case can be oriented vertically or horizontally to fit your setup.

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·Transparent Acrylic Side Panel: Edge-to-edge acrylic transparent side panel offers a full view inside your build.

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·ATX PSU Support: Compact Micro-ATX form factor that supports a standard full-size ATX power supply.

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·Magnetic Dust Filter: Front magnetic dust filter with open perforated front, top, and bottom panels for high airflow performance.

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·Clean Cable Management: Extra space behind the motherboard tray for hidden cable routing.

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What's in the Box

·1 x Cooler Master MasterBox Q300L Micro-ATX Computer Case (Black)

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·Mounting hardware and screws

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·User manual

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For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping on all orders over $100 (before taxes, fees, and promo codes).

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Computer components
Return/Exchange Period
30 days
Condition
Unopened

We can only acceept returns that are in their original packaging and do recommend customers check manufacturer's warranties for exclusions.

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