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Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF)

4.5 out of 5 stars 8,597 ratings
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Micro-ATX MB
Tower
Q300L TUF
Brand Cooler Master
Color Q300L TUF
Material Acrylic
Cooling Method Air
Motherboard Compatability ATX

About this item

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  • TUF edition: The Master Box Q300L joins the TUF Gaming Alliance, carrying the TUF marks on both magnetic filters and both side panels
  • High flexibility of system building: The I/O panel can be adjusted to 6 different locations. On both sides 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 370 millimeter x 370 millimeter, the Master Box Q300L can accommodate a normal ATX PSU
  • Excellent thermal performance: The open design of the perforated front, top and bottoms excellent thermal performance potential
  • Edge to edge transparent side panel: Show off your build through the full size transparent side panel

Frequently bought together

  • Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF)
  • +
  • ARESGAME Power Supply 500W 80+ Bronze Certified PSU (AGV500)
  • +
  • Seagate BarraCuda 2TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache 3.5-Inch – Frustration Free Packaging (ST2000DM008)
Total price: $153.27
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Cooler Master MasterBox Q300L TUF Gaming Alliance Edition Micro-ATX Tower with TUF Aesthetic Design, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow (MCB-Q300L-KANN-TUF)
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Customer Rating 4.5 out of 5 stars (8597) 4.3 out of 5 stars (1004) 4.7 out of 5 stars (507) 4.8 out of 5 stars (18034) 4.3 out of 5 stars (4085) 4.8 out of 5 stars (1568)
Price $54.59 $50.66 $44.99 $69.99 $47.99 $79.99
Sold By Amazon.com BeachAudio Amazon.com Amazon.com Amazon.com Amazon.com

Product description

Style:Micro-ATX MB  |  Pattern Name:Tower  |  Color:Q300L TUF

The Master Box Q300L joins the TUF Gaming Alliance, carrying the TUF marks on both of the magnetic filters and both side panels. For a cohesive TUF setup, the military styling ensures that components are in uniform and ready for battle. The Master Box Q300L brings all of its advantages to the TUF Gaming Alliance, with support for a standard ATX PSU for mATX motherboards. The I/O panel can be adjusted to six different locations, three options at each side of the case.


Product information

Style:Micro-ATX MB  |  Pattern Name:Tower  |  Color:Q300L TUF

Technical Details

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Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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4.5 out of 5 stars
4.5 out of 5
8,597 global ratings
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Top reviews from the United States

Reviewed in the United States on June 2, 2018
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
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5.0 out of 5 stars Well built case for the money!
By ammanda nielsen on June 2, 2018
Absolutely love how this case and build came together. Plenty of room for a simple build, and I love the option of moving the power/usb's around rather than them always having to stay in the same place. SSD installs are clean, love that the case doesn't have a big stack of metal in the front for HDD, but keeps the HDD hidden behind the back panel which still leaves plenty of room for extra cord. The power supply gets installed securely with a bracket in the case, and is installed a little further into the case to allow for a nice handle on the bottom backside of the case. Overall this case is WELL WORTH the small amount they are asking for. I have built with cases that cost 3x as much that don't make as much sense as this case did. Beautifully built.
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129 people found this helpful
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Reviewed in the United States on August 5, 2019
Style: Q300P RGBPattern Name: TowerColor: Q300PVerified Purchase
246 people found this helpful
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Reviewed in the United States on May 1, 2018
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
80 people found this helpful
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Reviewed in the United States on February 15, 2019
Style: Micro-ATX MBPattern Name: TowerColor: Q300L TUFVerified Purchase
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5.0 out of 5 stars Great Budget Micro ATX Case
By J Swanger on February 15, 2019
I was looking for something smaller and affordable to transplant my microATX system into from an old Antec 900 that provided decent air flow for my 4790k and RX 580 and I settled on the Q300L TUF edition. There is decent room in the back for cable management but I suggest going with a modular power supply to save the space that's there. I have an older Corsair CX750 that isn't modular and I am having a tough time closing the back cover completely and I don't have any room in back for my RGB controlller and all of the wiring. This is definitely a great case for the money, though. The modular structure and customization options are hard to beat with other manufacturers.
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46 people found this helpful
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Reviewed in the United States on April 21, 2019
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
104 people found this helpful
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Reviewed in the United States on April 13, 2019
Style: ATX MBPattern Name: TowerColor: Q500LVerified Purchase
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1.0 out of 5 stars Misaligned holes = no fan support for top
By flux on April 13, 2019
All the holes are misaligned. 120 or 140mm fans will not work in the top. None of the holes line up anywhere.
Also what is the point of bottom fan support if the thing barely sits 2mm off the ground?
Moved my build from a HAF 932 Advanced to this, which was a huge downsize in case, but upsize space saved and portability.
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Top reviews from other countries

Jim
5.0 out of 5 stars ✔ Awesome Little Case! (with a Few Small Flaws)
Reviewed in the United Kingdom on October 3, 2018
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
Customer image
5.0 out of 5 stars ✔ Awesome Little Case! (with a Few Small Flaws)
Reviewed in the United Kingdom on October 3, 2018
Having had a larger PC case for a while I thought it was time to move to a smaller option. I liked the look of the BitFenix cases but at around the £50 mark, the CoolerMaster Q300L was just what I was looking for price and design-wise.

Being able to choose where the USB and power buttons are placed is a cool idea but if you want to use it at the top (like in my setup - Pic above) you will need a USB extension to run the cable down the back of the case.

There's plenty of room for cable management and the build quality is good. I have a full sized HDD at the back and there's also space for two SSD's.

Having all the holes means that you don't get much airflow pressure but I haven't had any heat issues with my overclocked AMD 1700X. If you're looking at having your PC on the floor, I woudn't choose this case as it'll most likely be full of dust in a few months. For desktop, I've had it running 4 months with minimal dust although you can see a slight dust ring around the front intake fan.

When setting up be careful with any fluff and this will easily get stuck into magnet dust filter mesh.

If you do decide to buy the CoolerMaster Q300L, you'll also need to invest in some fans as it only comes with one medium-volume fan. LED fans looks great and I've added three plus used the included fan as a front-intake.

Pros
✔ Cool Design
✔ Build Quality + Cable Management
✔ Removable Magnet Dust Filters
✔ Compact Size

Cons
- Only One Fan Included
- Perspex Window Tint Is Very Dark
- USB Cables a little short

I also upgraded the CPU fan to a Arctic Freezer 7 Pro and there's plenty of horizontal room left. If you're going for a big CPU cooler, you might have to watch out with the clearance.

Cheers,
Jim!
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41 people found this helpful
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Greg
2.0 out of 5 stars Nice looking case, but with a STUPID location of 3.5" HD mount.
Reviewed in the United Kingdom on April 4, 2019
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
17 people found this helpful
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Daniele Ponzini
5.0 out of 5 stars Rapporto qualità prezzo indiscutibile!
Reviewed in Italy on December 17, 2018
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
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5.0 out of 5 stars Rapporto qualità prezzo indiscutibile!
Reviewed in Italy on December 17, 2018
Partiamo dal prezzo: 37€. Di solito a questa cifra si trovano solo case di marche poco conosciute o comunque con soluzioni economiche per quanto riguarda la disposizione dei componenti o del cable management.

Cooler Master invece questa volta si è davvero impegnata e ha tirato fuori una piccola bomba.

La prima cosa che salta agli occhi e la modularità del case con possibilità di installare le ventole o i radiatori dove e come si vuole (nei limiti del formato M-ATX) e perfino l'area pulsanti si puà spostare a piacimento sui 3 lati del pannello laterale, permettendo di trovare la posizione più comoda in base alle esigente (ad esempio io li ho spostati in alto).

Il cable management è facilmente gestibile, merito dello spazio posteriore e dei vari fori per i passaggi dei cavi.

La lamiera è rifinita molto bene, tutti i bordi sono arrotondati e non ho trovato nessuna parte tagliente.

Ovviamente non è fatto per sistemi complessi con tanti HD/SSD o con Kit a liquido Custom. Ma per Rig Gaming (anche di fascia lata) ma senza mille componenti direi che è perfetto per il prezzo a cui viene proposto. Inoltre è davvero contenuto come dimensione e all'esterno sono presenti filtri magnetici antipolvere.

Attualmente monta un i7 6700K con GTX 1070 e mi sono trovato decisamente meglio rispetto al Bitfenix Phenom che ho abbandonato per la disperazione (e che ho pagato più del doppio)

Voto 8/10
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49 people found this helpful
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AddzSapphire
4.0 out of 5 stars First build went well.
Reviewed in the United Kingdom on October 9, 2019
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
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4.0 out of 5 stars First build went well.
Reviewed in the United Kingdom on October 9, 2019
Probably not the best idea ever to do a tight mATX build as my first PC build but overall went well.

Word of advise be careful with the power panel, I didn't realise the panel had 4 screws holding it in the case (thought it was just the 2) and removed the top plate as it came off easily only to find that it would not go back on the same again and the power button was held on by this plate (rewired my case so that the reset button is now the power button, and positioned the power button for show).

Case has managed to somehow swallow 2070 super gaming X trio but this was a very tricky install (this was why the power panel had to be removed).

Cooler master ml120r argb cooler fit well too but getting the pipes in the correct position was also tricky.

I have 2 mf140r as intake at the front and the original 120 fan from the case positioned at the top as exhaust near the RAM. So case is very adaptable and nothing is running too hot.

Lots of room in the back for cables, do not have any HDD/sata SSD (only m.2) installed though so can't comment on cable space when these are taking up space. But do have the RGB controller from the ml120r back there running all the RGB fans. Some cables can be fiddly to run (especially the CPU power cable connecting to a MSI b450m mortar max).

Overall pleased with this case, looks good and functions well.
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7 people found this helpful
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Jose
5.0 out of 5 stars Para equipos compactos ITX o Micro-ATX
Reviewed in Spain on August 1, 2018
Style: Micro-ATX MBPattern Name: TowerColor: BlackVerified Purchase
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5.0 out of 5 stars Para equipos compactos ITX o Micro-ATX
Reviewed in Spain on August 1, 2018
Hello Amigos Amazon
Buena caja para montarnos un equipo personalizado, Tiene características muy interesantes y bastantes opciones para el cableado.

El chasis esta pensado para usuarios como yo, Que buscan armarse un equipo personalizado sin depender de esos chasis tan exagerados y de gran tamaño.
También existimos los usuarios con motherboard de formatos (Micro ATX) - (Mini ITX)

Esta Torre destaca por el uso de filtros anti-polvo magnéticos en el panel frontal y en la parte superior.
Al ser magnéticos se quitan de manera rápida y sin complicaciones, Solo tenemos que tirar de ellos para sacarlos.
Este diseño hace que sea fácil limpiarlos.

Trae incorporado un ventilador trasero bastante silencioso con unas RPM De 500 rpm hasta los 1080 rpm.

Soporta hasta un máximo de seis ventiladores, dos delanteros, dos superiores, uno trasero y uno abajo.

Los 2 ventiladores delanteros pueden de 12mm o 14mm y estos serán los encargados de la entrada de aire fresco.
Los 2 ventiladores de la parte superior pueden ser de 12mm y son los que expulsaran el aire caliente.
El la parte trasera viene incorporado un ventilador de 12mm y es el encargado de expulsar el aire caliente.
El la parte de abajo se puede poner un ventilador de 12mm o de 14mm y este ayudara a meter mas aire fresco.

Dentro del chasis hay algunas oberturas escondidas por donde pude pasar los cables y conexiones de los componentes y todo queda de manera limpia y ordenada.
Nunca había tenido un chasis con tantas opciones para los cables (Se agradece)

Este chasis esta muy logrado y gracias a todas sus opciones y configuración puede quedar una Torre bastante limpia, Sin cables por medio, Esto evitara que el flujo de aire se interrumpa por culpa de obstáculos.
Si eres de los que tiene un poco de maña y paciencia te quedara una torre super limpia y bonita.

Si lo acompañas de algunos ventiladores y tiras de Leds tendrás una Torre personalizado estupenda.
Sera tu creación y eso no te lo quita nadie.

Por las noche es cuando mas destaca por el lateral, Aunque me hubiera gustado que este lateral fuera de vidrio templado y no de plástico como este, Aunque por este precio es comprensible.
Si tienes ganas de hacerte un PC personalizado aquí tienes el chasis perfecto.
Te puedes montar un ordenador en condiciones.
Es una torre muy chula e interesante con muchas opciones para el montaje.

Dejare algunas fotos, Pienso que una foto vale mas que mil palabras.
Cualquier duda puedes preguntar y recuerda que un simple clic anima a dedicar mas tiempo a valorar un producto y siempre es confortable ver un agradecimiento.
Goodbye friend ☺ Very good
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