Cooler Master MasterBox Q300L Micro ATX Tower w/ Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated for Airflow, MCB-Q300L-KANN-S00
Choose Your Style
The MasterBox Q300L is your straightforward option in the MasterBox Q-series from Cooler Master, a series that might be small in size but excels in functionality, modularity, and thermal performance.
System Flexibility
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.
Magnetic Dust Filters
Patterned magnetic filters create a unique look for your chassis while keeping your system's internals free from excess dust.
Small Form Factor, ATX PSU Support
Despite the Micro-ATX form factor and the body depth/height of only 370 x 370mm, the MasterBox Q300L can accommodate a normal ATX PSU.
Edge-to-Edge Acrylic Side Panel
Show off your build through the full size transparent side panel.
Thermal Performance
The open design of the perforated front, top, and bottom guarantees excellent thermal performance.
Routing Space
A space 28mm-wide behind the motherboard tray offers open space for hidden cable management.
Learn more about Cooler Master MCB-Q300L-KANN-S00ModelBrandCooler MasterSeriesMasterBox ATX TowerColorBlackCase MaterialSteel / PlasticWith Power SupplyNoPower Supply MountedBottomMotherboard CompatibilityMicro-ATX / Mini-ITXSide Panel WindowYesDust FiltersBottomExpansionInternal 3.5" Drive Bays1Internal 2.5" Drive Bays2Expansion Slots4Front Panel PortsFront Ports2 x USB 3.0 / Audio In & OutCooling SystemFan OptionsFront - 2 x 120mm / 2 x 140mm fanRear: 1 x 120mm fan (Pre-installed)Top: 2 x 120mm fanBottom: 1 x 120mm fanRadiator OptionsFront - Up to 240mm / Rear - Up to 120mmDimensions & WeightMax GPU Length360 mmMax CPU Cooler Height157 mmMax PSU Length160 mmDimensions (H x W x D)15.00" x 9.06" x 15.24"Weight8.16 lbs.Additional InfoFeaturesHigh Flexibility for System Building: 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.Minimized Dimension with ATX PSU Support: Despite the Micro-ATX form factor and the body depth and height of only 370mm x 370mm, the MasterBox Q300L can accommodate a normal ATX PSU.Patterned Dust Filter: Special pattern on the dust filter creates a unique outlook for the chassis.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.Edgo-to-Edge Acrylic Transparent Side Panel: Show off your build through the full size transparent side panel.Vertical and Horizontal position: The case can be put in vertical and horizontal position.ShippingEnjoy fast and reliable shipping. Order will be shipped within 24 hours or one business day after the payment is cleared, Order placed on the weekends/holidays will be shipped the following business day.PaymentsWith Managed Payments, we accept most major credit cards, debit cards, Apple pay, Google pay, Paypal, and other locally accepted forms of payment.ReturnReturns for exchange or refund will be allowed within 30 days from the date of receipt (Returns are subject to restocking fees of 15% - 30%). All returns need to be returned in its original condition.
