Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Cooler Master MasterBox MB320L ARGB Mini Tower, Black, Mini Tower, 2 x USB 3.2 Gen 1 Type-A, Tempered Glass Side Window Panel & DarkMirror Front Panel, 2 x Addressable RGB Fans IncludedMASTERBOX MB320L ARGB BETTER AFTER DARKMIRROR DarkMirror Front Panel Mesh Intakes Dual ARGB Fans Tempered Glass Side Panel Adaptable Drive Cage Versatile Cooling Options Room For Upgrades A NEW SHADE OF LIGHTING The MasterBox MB320L ARGB is a Micro ATX PC case with two pre installed ARGB fans and honeycomb mesh ventilation on either side of the DarkMirror front panel. The DarkMirror front panel is smoked a shade darker to sharpen the contrast of the
MASTERBOX MB320L ARGBBETTER AFTER DARKMIRROR
- DarkMirror Front Panel
- Mesh Intakes
- Dual ARGB Fans
- Tempered Glass Side Panel
- Adaptable Drive Cage
- Versatile Cooling Options
- Room For Upgrades
A NEW SHADE OF LIGHTING
The MasterBox MB320L ARGB is a Micro-ATX PC case with two pre-installed ARGB fans and honeycomb mesh ventilation on either side of the DarkMirror front panel. The DarkMirror front panel is smoked a shade darker to sharpen the contrast of the ARGB fans pre-installed behind it, highlighting its best features.
A high potential for both air-cooled and liquid-cooled builds comprise of front, top, and rear ventilation with the possibility to mount additional fans and radiators. Upholding the award-winning principles of the MB Series, versatility is paired with presentation to ensure that any gaming system built inside the MasterBox MB320L ARGB looks as good as it performs.
DARKMIRROR FRONT PANEL
The DarkMirror front panel shades light to add contrast to illuminated components.
MESH INTAKES
Large, mesh intakes span each side of the front panel to provide additional airflow to system.
DUAL ARGB FANS
Two pre-installed 120mm ARGB fans can be managed by the motherboard, connected by the included splitter, to create a comprehensive ARGB lighting system.
TEMPERED GLASS SIDE PANEL
Hardware, custom-loop cooling, and the pure pride of the builder is shown in panoramic view through an edge-to-edge tempered glass side panel.
ADAPTABLE DRIVE CAGE
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.
VERSATILE COOLING OPTIONS
Support for up to six fans and front, top, and rear radiator support ensure that performance is not compromised.
ROOM FOR UPGRADES
Support for up to a 344mm graphics card, a 166mm CPU cooler, and up to a 325mm PSU in length provides room for upgrades to stay ahead of the game.
Model Number
MCB-B320L-KGNN-S02
Series
MasterBox Series
Form Factor
Micro Tower
Colour
Black
Materials
Plastic
Tempered Glass
Mesh
Dimensions ( L x W x H )
366.5 x 210 x 400mm
Weight
5.47kg
Motherboard Support
Micro ATX
Mini-ITX
Expansion
Slots: 4
Drive Bays
5.25": N/A
2.5"/3.5" (Combo): 2
2.5": 2
I/O Panel
2 x USB 3.2 Gen 1 (formerly USB 3.0)
1 x 3.5mm Audio Jack
1 x 3.5mm Mic Jack
1 x ARGB 2-to-3 splitter
1 x ARGB Controller (only for the S02 versions)
Pre-Installed Fans
Front: 2 x 120mm ARGB Fan
Fan Support
Top: 2 x 120mm / 140mm
Front: 3 x 120mm / 2 x 140mm
Rear: 1 x 120mm
Radiator Support
Top: 120mm / 240mm
Front: 120mm / 140mm / 240mm / 280mm
Rear: 120mm
Clearance
CPU Cooler: 166mm
PSU: 140mm (HDD cage in backmost position) / 325mm (w/o front radiator & HDD cage)
GFX: 344mm
Cable Routing: 18-22mm
Dust Filters
Top
Bottom
Front
Power Supply Support
Bottom mount
ATX
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 520 reviews
Sort
Product Reviews
★★★★★ 5
Good For Heavy Chewers So Far
Color: Onyx Black - Most Durable
Solid quality. My Doberman is a power chewer and I am looking for a toy that he can't destroy in 2 seconds. If a ball lasts more than an hour it is a miracle. It has a sturdy design and is more heavy weight than the other "non-destructible" balls he has. He has only had his ball for one day so we will see how long this ball lasts him. It is the size of a tennis ball, firm, little to no bounce, and seems built for heavy chewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
★★★★★ 5
Great Product, 2 years and running!
Color: Onyx Black - Most Durable
It’s been almost 2 years and my dogs haven’t destroyed them yet. I have a Pitbull and a Pit/Cosro mix. They destroy every toy we’ve given them, except these toys. Great product 100% worth the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
★★★★★ 5
Perfect for HEAVY chewers
Color: Onyx Black - Most Durable
My dog is a heavy chewer. Destroys everything that’s not very hard rubber, hard plastic, or hard material. He LOVES this ball. I think it’s his favorite. Plus, it bounces great so you can play with your dog. Very well constructed- probably indestructible or will at least last a very long time. Easily worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
★★★★★ 5
The only toy my dogs can’t destroy and love
Color: Onyx Black - Most Durable
I am thrilled to have found one toy my dogs don’t destroy immediately. They have torn up Fenrir hammers, the black kongs of all sizes, the monster k9 stick, nylabones, and they don’t like the goughnut at all (it stinks like a bad tire). This is the first one they both love and haven’t been able to destroy immediately. It does allow little tooth marks, but that’s what makes it fun for them. They are very happy playing with it and I’d say this one was worth every dollar.
Update Months Later: We’ve gone through 2/3 now. I got two initially, and one has lasted long term. They still haven’t completely destroyed it. They did destroy a second one quickly so I suspect a flaw in it. They sent me a new one and they took a while, but they did destroy the third to the point we had to throw it away. Despite that, one still remains and our dogs still love it. It’s still the best for the money compared to others. We have two Bully XL’s that are each close to 100 pounds.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2024
★★★★★ 5
Indestructible
Color: Onyx Black - Most Durable
This is actually indestrutible! Be careful though, it's wicked hard/heavy. It isn't a ball you want banging into things. Use outside!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026