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MasterBox Q300L mATX Case w/Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Air Flow Performance
- I/O panel can be adjusted in 6 different locations and the Case can be positioned: vertical or horizontal
- Edge-to-Edge Acrylic Transparent Side Panel offers a full view inside
- Body depth height: can support normal size ATX power supply
- Front Magnetic Design Dust Filter with open perforated front, top and bottom for high air performance
- Extra space behind the motherboard tray for hidden cable management
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From the manufacturer
Make It Yours.
We're all about the things that make building a PC such a rewarding experience. The sense of achievement. The joy of making and creating something uniquely yours in form and function and, of course, the thrill of bringing your creation to life without melting your components.
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. The combination of a practical design and the unique customizable aesthetic makes the Q300L the perfect choice for office and home use.
- Magnetic Dust Filters
- 6-Orientation I/O Panel
- Edge-to-Edge Acrylic Side Panel
- Clean Routing Space
- Small Form Factor, ATX PSU Support
- Excellent Thermal Performance
6-orientation I/O panel—both sides: front, top, and bottom.
Edge-to-Edge Acrylic Side Panel
Show off your build through the full-size transparent side panel.
Clean Routing Space
28 mm of open space for hidden cable management.
Small Form Factor, ATX PSU Support
Despite the Micro-ATX form factor and the body depth/height of only 370 x 370 mm, the Q300L can accommodate a normal ATX PSU.
|MasterBox Q300L||MasterBox Q300P||MasterBox Lite 3.1 TG||MasterBox Lite 5|
|Dimensions – L x W x H||387 x 230 x 378 mm (15.2 x 9.1 x 14.9 in)||450 x 230 x 450 mm (17.7 x 9.1 x 17.7 in)||456 x 209 x 381 mm (18.0 x 8.2 x 15.0 in)||468 x 200 x 454 mm (18.5 x 7.9 x 17.9 in)|
|Motherboard Support||Micro-ATX, Mini-ITX||Micro-ATX, Mini-ITX||Micro-ATX, Mini-ITX||ATX, Micro-ATX, Mini-ITX|
|Liquid Cooling Support – Front, Rear||1 x 120 mm / 1 x 240 mm, 1 x 120 mm||1 x 120 mm / 1 x 240 mm, 1 x 120 mm||1 x 240 mm, 1 x 120 mm||120 / 140 / 240 / 280 / 360 mm (limited) up-to 50 mm thickness w/o fan, 1 x 120 mm|
|Materials||Steel, Plastic||Steel, Plastic||Steel, Plastic, Glass||Steel, Plastic|
|Fan Support – Front, Top, Rear, Bottom||2 x 120 / 140 mm, 2 x 120 mm, 1 x 120 mm, 1 x 120 mm||2 x 120 / 140 mm, 2 x 120 mm, 1 x 120 mm, 1 x 120 mm||2 x 240 mm, n/a, 1 x 120 mm, n/a||3 x 120 mm/2 x 140 mm, 1 x 120 mm|
|Drive Bay Support – 5.25", 3.5" HDD, 2.5" SSD||0, 1, 2||0, 1, 2||n/a, 2, 1||n/a, 2 (Combo 3.5"/2.5"), 1|
|Extra Features||Magnetic Dust Filters||RGB LED Control and 1-to-3 Splitter Cable Included, Four Removable Handles||4 mm Edge-to-Edge Tempered Glass, Three Customizable Trim Colors||PSU Cover, Three Customizable Trim Colors|
|Power Supply Support||Bottom Mount, ATX PS2||Bottom Mount, ATX PS2||Bottom Mount, ATX||Bottom Mount, ATX|
|Clearances – VGA, CPU, PSU||360 mm, 157 mm, 160 mm (14.2 in, 6.2 in, 6.3 in)||360 mm, 157 mm, 160 mm (14.2 in, 6.2 in, 6.3 in)||380 mm, 158 mm, 160 mm (15.0 in, 6.2 in, 6.3 in)||400 mm, 160 mm, 180 mm (16.14 in, 6.3 in, 7.1 in)|
|I/O||2 x USB 3.0, Audio I/O||2 x USB 3.0, Audio I/O||2 x USB 3.0, 1 x USB 2.0, Audio I/O||2 x USB 3.0 x Audio I/O|
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|5 star 66% (66%)||66%|
|4 star 21% (21%)||21%|
|3 star 7% (7%)||7%|
|2 star 2% (2%)||2%|
|1 star 3% (3%)||3%|
Review this product
Top international reviews
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.
✔ Cool Design
✔ Build Quality + Cable Management
✔ Removable Magnet Dust Filters
✔ Compact Size
- 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.
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)
1) Very clever magnetic dust filters which double up as aesthetically attractive (but still understated) covers of the front and top.
2) Beautiful smoked side window, made from polycarbonate (not glass).
3) Clever option of having the case stand vertically or flat, as it has rubber screw feet on the non-windowed side panel.
4) Tons of room behind the motherboard panel for cable management, making for a very tidy build indeed.
Now the negatives (1 big one really):
1) The location of the HD mount is behind the motherboard panel. This is an area that is TOTALLY unventilated, and so the HD gets very hot here. The bracket itself is clever, which is a plate that is screwed to the HD and then this plate clips (and secured by a thumb screw) into its mount.
Because of the excessive heat build-up of the HD (obviously not helped by ZERO air-flow and heat from the back of the CPU), I decided to mount my 3.5" 2TB hybrid drive elsewhere. There's a few alternative locations for 2.5" drives, but not my bigger 3.5" HD. I re-used a mounting bracket from an old build and mounted it on the case's floor panel in front of the PSU. It stays MUCH cooler there.
Overall the result is good. But I cannot fathom the hideous design choice of mounting the 3.5" HD behind the motherboard where it will bake. If you're only using 2.5" SSD/HDs then you will be fine.
Nice aesthetic on dust filter.
Loads of room for cable management (Even with non-modular psu's)
Can position the front Io wherever you want.
Very compact but plenty of building space.
Good build quality.
Fits very large graphics cards.
Slightly scratched on inside acrylic panel.
Difficult to get acrylic panel off.
Could be more mounting points for ssd's/slim hdd's.
Overall an excellent case for the price, looks very modern and a pleasure to build in.
Auch wenn die ganzen Löcher vielleicht den Glauben aufkommen lassen, dass dieses Gehäuse gut belüftet ist - dem ist nicht so, da die Löcher recht klein sind und so ca 75% der Front Blech ist und nur ca 25% offen.
Ist also nicht wirklich für ein high-end System zu gebrauchen, hatte damals einen ryzen 1600 und eine gtx1080 drin und man hat die Lüfter um Gnade winseln gehört, trotz 5 verbauten Gehäuse-Lüftern.
Das gleiche System war vorher in einem thermaltake versa h15 verbaut, wo sie Temperaturen ca 10°CPU und gpu tiefer waren.
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.
However, if you want to put a load of 3.5" drives into it, but still want a small-ish case, then beware..
I wanted this case to replace a much smaller case I use as a NAS. I wanted something with a bit more room and something a bit easier to keep cool.. It's got up to 6 drives (5 of them 3.5")..
Aside from the awful mount point for the single 3.5" drive**, there is NOTHING to allow you to natively add a load of 3.5" disks. So I had to create my own little HDD rack using white 30mm plastic angle sections.. I've managed to stack 5 of them on top of each other, with 1cm between each, and sit this 'enclosure' behind the front fan..
A total pain in the behind, but it works....
If this case were 1cm wider and 1cm longer, it would be perfect..
**even the single 3.5" mount point is unsuitable as there is NO ventilation at this position..
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
Bearing in mind this a Cooler Master case and just shy of 60 quid I found it to be flimsy, tinny and simply not as nice in the flesh as its picture.
The magnetic dust cover are naff any fan/rad screw makes them ruck up. The side i/o panel is great and I found it brill as I need side on access to ports but again flimsy and if like me you needed to swap a long GPU out then its 4 tiny screws every time to move it out the way.
Finally the cheap clear side panel marks as soon as look it it.
It can take a ATX PSU which sits above the CPU and is just ok for the newer coolest running new CPUs with normal air fans.
The 5.25" wide CD caddy has wasted space of 1" either side and underneath where excess PSU cables and front case cables reside.
Strong case with middle handle inside. I would recommend assembling your PC on the floor as the PSU needs temporary support when building.
Basic steps for this small case are:-
1. Assemble CPU + Cooler + RAM
2. Insert mobo 4 screws - wire everything up to mobo inc PSU
3. Slide PSU in at side
4. Add GPU (maybe)
5. Tidy cables
6. Add CD
That's it and reverse order to undo.
Went well with ASRock mobo and Ryzen.
Managed to fit a 240MM AIO at the front with plenty of room for a RTX 2080 and my old GTX 980TI which was very long.
It can be fiddly to cable manage however if you plan to see through the side panel and want a clean look. Looks great with RGB fans at the front as they shine through the mesh really well.
Can stick up to a 120mm water cooler or a slimhero 120mm, the cooler height is 54mm but my slimhero was 59mm with HS and fitted easily with about 5mm room to spare, so this probably only counts the visible diameter.
I have water cooling in it, a hard drive on the side, a barely lying SSD inside the case, a ATX Be quiet 700w 80+ silver PSU, and a mini-ITX mobo, a AMD Ryzen AM4 one, Biostar X370GTN Racing REV.5.0 with R3 2200G and a full sized dual fan Sapphire RX 470 NITRO+ 4GB Hynix.
It is hard to put i/o shield on in my case - but everything is functional, came with 4 standoffs, thumbscrews, screws i used for standoffs for my full ATX Crosshair VI Hero ASUS PC in a other, NZXT case.
Still has a optical bay free after all this, so you can either get a 5.25 rack with more SATA SSDs, or get a optical drive, and either leave SSD laying around like i do inside the case (with this little room it's not really going to run away let's be honest) it's a good case, or m/2 drive and optical drive either way.
I had a optical drive - accidentally killed it due to my mobo's cheap sata cable, might add one soon again. The front fan has a filter which can be taken off but got ripped off a bit. Part of that case is plastic that part but most and rest is definitely solid.
Very proud of the finished results
Per il resto è Cooler Master niente e lasciato al caso, può essere messo sia verticalmente che orizzontalmente ha già i piedini predisposti, ha sui 3 lati le retine antipolvere frontalmente e superirmente sono magnetiche, nella parte inferiore sono fissate con dei gommini semplici da rimuovere.
Durante l'assembleaggio consiglio di rimuoverle tutte onde evitare che si deformi o.
Per il resto è un ottimo case io lo ho usato per un pc media player in salotto i7 2600k gtx970 e 8gb ram più ssd 250gb e hdd1tb ottimo per video editing o modifica foto fotoshop.pensare che mia moglie non voleva pc in salotto ma una volta visto il risultato finale ha esclamato"be questo è carino". 😉
Per la durabilità vedremo col tempo, ma i materiali sembrano solidi e ben fatti.
Great little case, only bad point is that the dust "filters" could use some finer mesh on the back of the magnetic "filters".
Yeah dust still gets in, not as much yes, but with mesh that could be minimized to bare minimum.
All in all, very comfy case.