No products in the cart.
Description
The MasterBox Q300L Mini Tower Case from Cooler Master supports Micro-ATX and Mini-ITX motherboards. The case features one 3.5″ HDD drive bay, two 2.5″ SSD drive bays, and four expansion slots. The I/O panel includes two USB 3.0 ports and audio in/out jacks, and it can be adjusted to six different locations, three options at each side. The Q300L supports GPUs up to 14.2″ and CPU Coolers up to 6.2″ tall. A 1.1″ space behind the motherboard tray offers hidden cable management.
Additional information
| Weight | 10.04 lbs |
|---|---|
| Dimensions | 18.1 × 16.9 × 10.8 in |
| Motherboard Support | Micro-ATX, Mini-ITX |
| Maximum Radiator Size (Front) | 240 mm |
| Dimensions (W x H x D) | 9.06 x 14.88 x 15.24" / 230 x 378 x 387 mm |
| Cable Management Space | 1.10" / 28 mm |
| Tool-Less Design | Thumbscrews |
| Built-In Lighting | No |
| Certifications | CE, FCC, as per Manufacturer |
| Material | Plastic, Steel |
| Windowed Panel | Yes |
| Display Connections | None |
| Audio Connections | 1 x 3.5 mm Input<br />1 x 3.5 mm Output |
| Connections | 2 x USB Type-A (USB 3.1 / USB 3.2 Gen 1) |
| Filter Locations | Bottom |
| Fan Mounting (Internal) | None |
| Maximum Radiator Size (Rear) | 120 mm |
| Fans Included (Rear) | 1 x 120 mm |
| External Drive Bays | None |
| Fans Included (Front) | None |
| Fan Mounting (Bottom) | 1 x 120 mm<br> |
| Fan Mounting (Top) | 2 x 120 mm<br> |
| Fan Mounting (Side) | None |
| Fan Mounting (Rear) | 1 x 120 mm<br> |
| Fan Mounting (Front) | 2 x 120 mm<br>Or<br />2 x 140 mm<br> |
| PSU Mounting Location | Bottom |
| Maximum PSU Length | 6.30" / 160 mm |
| Supported PSU Size | ATX |
| CPU Cooler Height | 6.18" / 157 mm |
| Maximum GPU Length | 14.17" / 360 mm |
| Expansion Slots | 4 x Full Height |
| Internal Drive Bays | 1 x 3.5"<br><br />2 x 2.5"<br> |
| Warranty Length | Limited 2-Year Warranty |
Reviews (8)
8 reviews for Cooler Master MasterBox Q300L Mini Tower Case
Only logged in customers who have purchased this product may leave a review.
Related products
$139.30
$34.99
Computer Cases
$58.38
Computer Cases
$125.99
Computer Cases
$148.46
Computer Cases
iStarUSA D Storm Series D-400-6SE 4U Compact Stylish Rackmountable Chassis (Silver Bezel)
$183.57
Computer Cases
$55.99
Duane Hodkiewicz
Verified Purchase
I love the size of this case, it’s clear that it’s not a higher end case, but it’s still fairly easy to build in and looks great when it’s done.
Dorothy Brakus
Verified Purchase
I used this with the ASUS Prime b450M-A/CSM motherboard which didn’t really fit well (probably my mistake) but it’s overall very good, the airflow is great and I love the glass xD Works pretty good with my PC, although if you have more money I’d recommend going for a bigger case that has more fans.
Roxanne Bogisich
Verified Purchase
Great quality
Naomie Kreiger
Verified Purchase
This case looks great and vents well. I like it’s size, internal space and I/O layout. Especially for the price. Very happy with the final build.
Gregory Leffler
Verified Purchase
This is a nice little case. It’s very modular, can be reconfigured to position many different ways, and leaves a reasonable amount of room for cable management. I’d say the only drawback is that it can be difficult to discern where things go, eg the front fan slots
Justine Renner
Verified Purchase
Great case and at a great price. Just built a new computer and I didn’t need or want anything fancy. Just a regular case that would get the job done. That’s what this case accomplished!
Aurelio Goldner
Verified Purchase
The case is fully vented on three sides–bottom, front, & top. It includes two magnet faces to provide the pattern seen, but they are not required to be used (allowing even more ventilation). As far as ventilation is concerned, my biggest issue is that the only 3.5 bay is on the back side of the motherboard–between the motherboard and case cover. That seems tight to me. Overall, the case is not quite as sturdy as I expected, but it is acceptable. The power / usb / front sound panel is relocatable, but a little flimsy, but o.k. I have purchased a second one after setting up the first one.
Verla Heathcote
Verified Purchase
It’s a case. Plenty of cabling options.