K350 brings an aggressive gaming look & high-end features to the entry level mid tower segment. It supports the latest ATX & Micro-ATX motherboards & long high-end graphics cards like the GTX690. It features three tool-free 5.25" bays, & space for 6 additional internal HDDs, 3 of which are tool-free. Thanks to its silent 120mm red LED fan & side panel window the K350 not only looks & sounds good, but managed to keep the system cool. & with its USB (Universal Serial Bus) 3.0 Super Speed port, movies, MP3s & pictures can be copied 10x faster; smartphones & tablets charge twice as fast as with USB (Universal Serial Bus) 2.0.
- Airflow optimized front mesh panel & large vents at the top, rear, bottom, & left side panel
- Super Speed USB (Universal Serial Bus) 3.0 port for 10x faster data transfer & 2x faster phone/tablet charging
- Comes with a silent 120mm red LED fan in the front;
- Supports up to 4 fans
- Large side panel window with fan-mounting
- Supports extra long graphics cards (GTX690 & HD7990)
- 6 HDD bays (3 Tool-Free) & 7 card expansion slots for great expandability
- Quick-release windowed side panels for easy access to components







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Case cooling is becoming more essential these days. The better airflow inside your system, the cooler & more stable system you will get.
- High transparency fan frame for better LED effect.
- LED On/ Off control connector to conveniently turn on or off LED.
- Strong air flow to fortify cooling efficiency.
- Silent operation as an excellent choice for case cooling.
- Ro HS compliance for protecting the environment.




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DESIGNED FOR SMALL FORM FACTOR CASESn The ultra-low-profile heat sink measures 39.4 mm overall
- the ideal size for small form
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A New Shade of Lightingn The Master Box MB320L ARGB is a Micro-ATX PC case with two pre-installed ARGB fans & honeycomb mesh ventilation on either side of the Dark Mirror front panel. The Dark Mirror front panel is smoked a shade darker to sharpen the contrast of the ARGB fans pre-installed behind it, highlighting its best features.nn A high potential for both air-cooled & liquid-cooled builds comprise of front, top, & rear ventilation with the possibility to mount additional fans & radiators. Upholding the award-winning principles of the MB Series, versatility is paired with presentation to ensure that any gaming system built inside the Master Box MB320L ARGB looks as good as it performs.nn Dark Mirror Front Paneln The Dark Mirror front panel shades light to add contrast to illuminated components.nn Mesh Intakesn Large, mesh intakes span each side of the front panel to provide additional airflow to system.nn Dual ARGB Fansn Two pre-installed 120mm ARGB fans can be managed by the motherboard, connected by the included splitter, to create a comprehensive ARGB lighting system.nn Tempered Glass Side Paneln Hardware, custom-loop cooling, & the pure pride of the builder is shown in panoramic view through an edge-to-edge tempered glass side panel.nn Adaptable Drive Cagen The drive cage is able to shift toward the front to accommodate for PSU space, backwards to provide additional radiator space, or even completely removed.nn Versatile Cooling Optionsn Support for up to six fans & front, top, & rear radiator support ensure that performance is not compromised.nn Room For Upgradesn Support for up to a 344mm graphics card, a 166mm CPU cooler, & up to a 325mm PSU in length provides room for upgrades to stay ahead of the game.nn ARGB Controller&1n&1 The small ARGB Controller is a mini-sized controller that allows your Addressable RGB such as fans & LED strips to be powered & controlled even in PC systems without an A-RGB capable motherboard.&1nn The controller comes with 14 lighting presets to make full use of the Addressable LEDs in the system & also allows to be completely switched off by long pressing its button.&1nn It is also possible to attach any external 2pin button to it to be able to switch presets without having to open the system. For ease of use, Cooler Master allows the RESET button to be optionally connected to the controller & used as an external ARGB preset switch button.\n\n\n\n Product ID: MCB-B320L-KGNN-S02\n\n Product Family: Master Box\n\n\n\n Model: MB320L ARGB\n\n Datasheet: http://objects.icecat.biz/objects/mmo_78669971_1589970684_4192_31042.pdf&pipe;http://objects.icecat.biz/objects/mmo_78669971_1589970690_2602_15891.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_78669971_1589970708_8446_27545.pdf\n\n\n\n\n\n\n\n ...

A New Shade of Lightingn The Master Box MB320L ARGB is a Micro-ATX PC case with two pre-installed ARGB fans & honeycomb mesh ventilation on either side of the Dark Mirror front panel. The Dark Mirror front panel is smoked a shade darker to sharpen the contrast of the ARGB fans pre-installed behind it, highlighting its best features.nn A high potential for both air-cooled & liquid-cooled builds comprise of front, top, & rear ventilation with the possibility to mount additional fans & radiators. Upholding the award-winning principles of the MB Series, versatility is paired with presentation to ensure that any gaming system built inside the Master Box MB320L ARGB looks as good as it performs.nn Dark Mirror Front Paneln The Dark Mirror front panel shades light to add contrast to illuminated components.nn Mesh Intakesn Large, mesh intakes span each side of the front panel to provide additional airflow to system.nn Dual ARGB Fansn Two pre-installed 120mm ARGB fans can be managed by the motherboard, connected by the included splitter, to create a comprehensive ARGB lighting system.nn Tempered Glass Side Paneln Hardware, custom-loop cooling, & the pure pride of the builder is shown in panoramic view through an edge-to-edge tempered glass side panel.nn Adaptable Drive Cagen The drive cage is able to shift toward the front to accommodate for PSU space, backwards to provide additional radiator space, or even completely removed.nn Versatile Cooling Optionsn Support for up to six fans & front, top, & rear radiator support ensure that performance is not compromised.nn Room For Upgradesn Support for up to a 344mm graphics card, a 166mm CPU cooler, & up to a 325mm PSU in length provides room for upgrades to stay ahead of the game.nn ARGB Controller&1n&1 The small ARGB Controller is a mini-sized controller that allows your Addressable RGB such as fans & LED strips to be powered & controlled even in PC systems without an A-RGB capable motherboard.&1nn The controller comes with 14 lighting presets to make full use of the Addressable LEDs in the system & also allows to be completely switched off by long pressing its button.&1nn It is also possible to attach any external 2pin button to it to be able to switch presets without having to open the system. For ease of use, Cooler Master allows the RESET button to be optionally connected to the controller & used as an external ARGB preset switch button.\n\n\n\n Product ID: MCB-B320L-KGNN-S02\n\n Product Family: Master Box\n\n\n\n Model: MB320L ARGB\n\n Datasheet: http://objects.icecat.biz/objects/mmo_78669971_1589970684_4192_31042.pdf&pipe;http://objects.icecat.biz/objects/mmo_78669971_1589970690_2602_15891.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_78669971_1589970708_8446_27545.pdf\n\n\n\n\n\n\n\n ...

DARKMIRROR FRONT PANELn Shade light through a transparent, tinted front panel.nn EXCELLENT THERMAL PERFORMANCEn Optimized airflow due to the large intakes on each side of the front panel.n Additional ventilation on the top panel adds thermal support.nn AGGRESSIVE INTAKESn Large intakes on each side of the front panel let the system breathe easy.nn EDGE TO EDGE TRANSPARENT SIDE PANELn Showcase your build through the transparent side panel.nn FAN & RADIATOR SUPPORTn Front: Three 120mm or two 140mm fans & up to a 360mm radiator with a maximum thickness of 50mm without fans.n Top: Two 120mm or two 140mm fans & supports a 120mm or a 240mm radiator.n Rear: One 120mm fan or radiator. All to ensure you don't have to compromise on performance.nn EXPANDING THE POSSIBILITIESn The spacious interior fits all standard motherboards for your gaming needs.nn MAIN COMPONENTS CLEARANCEn The Master Box MB520 case supports CPU coolers up to a height of 165mm, graphic cards up to a length of 410mm & power supplies up to a length of 180mm.\n\n\n\n Product ID: MCB-B520-KANN-S00\n\n Product Family: Master Box\n\n\n\n Model: MB520\n\n Datasheet: http://objects.icecat.biz/objects/mmo_59332063_1533132980_546_17535.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_59332063_1545811585_1406_19130.pdf\n\n\n\n\n\n\n\n ...

DARKMIRROR FRONT PANELn Shade light through a transparent, tinted front panel.nn EXCELLENT THERMAL PERFORMANCEn Optimized airflow due to the large intakes on each side of the front panel.n Additional ventilation on the top panel adds thermal support.nn AGGRESSIVE INTAKESn Large intakes on each side of the front panel let the system breathe easy.nn EDGE TO EDGE TRANSPARENT SIDE PANELn Showcase your build through the transparent side panel.nn FAN & RADIATOR SUPPORTn Front: Three 120mm or two 140mm fans & up to a 360mm radiator with a maximum thickness of 50mm without fans.n Top: Two 120mm or two 140mm fans & supports a 120mm or a 240mm radiator.n Rear: One 120mm fan or radiator. All to ensure you don't have to compromise on performance.nn EXPANDING THE POSSIBILITIESn The spacious interior fits all standard motherboards for your gaming needs.nn MAIN COMPONENTS CLEARANCEn The Master Box MB520 case supports CPU coolers up to a height of 165mm, graphic cards up to a length of 410mm & power supplies up to a length of 180mm.\n\n\n\n Product ID: MCB-B520-KANN-S00\n\n Product Family: Master Box\n\n\n\n Model: MB520\n\n Datasheet: http://objects.icecat.biz/objects/mmo_59332063_1533132980_546_17535.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_59332063_1545811585_1406_19130.pdf\n\n\n\n\n\n\n\n ...

The Master Box Q300L is your straightforward option in the lineup of the brand new Master Box Q-series from Cooler Master. A series that might be small in size but excels in functionality & modularity without compromising on the thermal performance.nn Although the size wouldn&153;t tell, the Master Box Q300L supports a standard ATX PSU which we don&153;t see often in the market with this size. Based on the different system setup, the I/O panel can be adjusted to six different locations, three options at each side of the case. You can decide which setup fits your system best.nn Due to the cube design of the frame & special pattern design on the dust filter will make the chassis stand out from the rest. The combination of a practical design & the unique customizable outlook makes the Master Box Q300L the perfect choice for office & home usage.\n\n\n\n Product ID: MCB-Q300L-KANN-S00\n\n Product Family: Master Box\n\n\n\n Model: Q300L\n\n Datasheet: http://objects.icecat.biz/objects/mmo_40336002_1519975742_8531_2060.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_40336002_1519975735_1781_3137.pdf\n\n\n\n\n\n\n\n ...

Airflow in an Art Formn The Master Box TD500 Mesh & Master Box TD500 Mesh White embody &156;airflow performance&157; in an art form. Three pre-installed ARGB fans flood the system with airflow & lighting, demonstrating the unique effect of ARGB through the Crystalline Tempered Glass.nn Each element of design is precision-engineered to maximize performance & quality alongside aesthetics, evolving beyond the current limits of lighting & cooling. With advanced technology sculpted into fine art, the Master Box TD500 Mesh & Mesh White carve their own path to the bleeding edge.nn Polygonal Meshn Crafted from Cooler Master&153;s Fine Mesh technology, Polygonal Mesh features a three-dimensional contour & simultaneously provides unobstructed airflow & dust filtration.nn Crystalline Tempered Glassn A crystalline design spans the edges of the tempered glass side panel, precision-engineered for strength as well as aesthetics, elevating how builds & system lighting interact with the design.nn Triple ARGB Fansn Three addressable RGB fans flood the Polygonal Mesh front panel with lighting while providing considerable airflow to the system.nn Certified compatible with: ASUS, Gigabyte, MSI, & ASRock motherboards.nn Dual 360mm Radiator Supportn For enthusiast-grade cooling, two 360mm radiators are supported on the top & front panel to keep the most extreme systems cool. nn Versatile Cooling Optionsn Support for up to seven 120mm fans & 360mm front & top radiator support ensure that performance is not compromised. nn Room For Upgradesn Support for up to a 410mm graphics card, a 165mm CPU cooler, & up to a 180mm PSU in length provides room for upgrades to stay ahead of the game. nnn ARGB Controller&1n&1 The small ARGB Controller is a mini-sized controller that allows your Addressable RGB such as fans & LED strips to be powered & controlled even in PC systems without an A-RGB capable motherboard.&1nn The controller comes with 14 lighting presets to make full use of the Addressable LEDs in the system & also allows to be completely switched off by long pressing its button.&1nn It is also possible to attach any external 2pin button to it to be able to switch presets without having to open the system. For ease of use, Cooler Master allows the RESET button to be optionally connected to the controller & used as an external ARGB preset switch button.\n\n\n\n Product ID: MCB-D500D-WGNN-S01\n\n Product Family: Master Box\n\n\n\n Model: TD500 Mesh\n\n Datasheet: http://objects.icecat.biz/objects/mmo_77165347_1592408278_6715_23942.pdf&pipe;http://objects.icecat.biz/objects/mmo_77165347_1592408295_5457_8705.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_77165347_1592408266_6237_2572.pdf\n\n\n\n\n\n\n\n ...

Airflow in an Art Formn The Master Box TD500 Mesh & Master Box TD500 Mesh White embody &156;airflow performance&157; in an art form. Three pre-installed ARGB fans flood the system with airflow & lighting, demonstrating the unique effect of ARGB through the Crystalline Tempered Glass.nn Each element of design is precision-engineered to maximize performance & quality alongside aesthetics, evolving beyond the current limits of lighting & cooling. With advanced technology sculpted into fine art, the Master Box TD500 Mesh & Mesh White carve their own path to the bleeding edge.nn Polygonal Meshn Crafted from Cooler Master&153;s Fine Mesh technology, Polygonal Mesh features a three-dimensional contour & simultaneously provides unobstructed airflow & dust filtration.nn Crystalline Tempered Glassn A crystalline design spans the edges of the tempered glass side panel, precision-engineered for strength as well as aesthetics, elevating how builds & system lighting interact with the design.nn Triple ARGB Fansn Three addressable RGB fans flood the Polygonal Mesh front panel with lighting while providing considerable airflow to the system.nn Certified compatible with: ASUS, Gigabyte, MSI, & ASRock motherboards.nn Dual 360mm Radiator Supportn For enthusiast-grade cooling, two 360mm radiators are supported on the top & front panel to keep the most extreme systems cool. nn Versatile Cooling Optionsn Support for up to seven 120mm fans & 360mm front & top radiator support ensure that performance is not compromised. nn Room For Upgradesn Support for up to a 410mm graphics card, a 165mm CPU cooler, & up to a 180mm PSU in length provides room for upgrades to stay ahead of the game. nnn ARGB Controller&1n&1 The small ARGB Controller is a mini-sized controller that allows your Addressable RGB such as fans & LED strips to be powered & controlled even in PC systems without an A-RGB capable motherboard.&1nn The controller comes with 14 lighting presets to make full use of the Addressable LEDs in the system & also allows to be completely switched off by long pressing its button.&1nn It is also possible to attach any external 2pin button to it to be able to switch presets without having to open the system. For ease of use, Cooler Master allows the RESET button to be optionally connected to the controller & used as an external ARGB preset switch button.\n\n\n\n Product ID: MCB-D500D-KGNN-S01\n\n Product Family: Master Box\n\n\n\n Model: TD500 Mesh w/ Controller\n\n Datasheet: http://objects.icecat.biz/objects/mmo_77007896_1592408269_7017_3956.pdf&pipe;http://objects.icecat.biz/objects/mmo_77007896_1592408289_1879_13040.pdf\n\n\n\n Manual: http://objects.icecat.biz/objects/mmo_77007896_1592408257_1698_20236.pdf\n\n\n\n\n\n\n\n ...