Series |
MasterBox Series |
Size |
Mid Tower |
Color(s) |
Black |
Materials |
Steel, Plastic, Tempered Glass |
Dimensions (L x W x H) |
496 x 217 x 469 mm |
Weight |
6.59 kg |
Motherboard Support |
Mini ITX, Micro ATX, ATX, SSI CEB*, E-ATX*, (*up to 12" x 10.7" motherboards, may impact cable management feature) |
Expansion Slots |
7 |
5.25" Drive Bays |
N/A |
2.5" / 3.5" Drive Bays (Combo) |
2 (Max.2) |
2.5" Drive Bays |
4 (Max.6) |
I/O Panel |
2 x USB 3.2 Gen 1 (USB 3.0), 1 x 3.5mm Audio Jack,1 x 3.5mm Mic Jack, 1x ARGB/PWM Hub (may depend on region and model) |
Pre-installed Fans - Front |
3x 120mm 650~1800RPM SickleFlow PWM ARGB |
Pre-installed Fans - Rear |
1x 120mm 1000-1400RPM MasterFan Lite |
Fan Support - Top |
3x 120mm, 2x 140mm |
Fan Support - Front |
3x 120mm, 2x 140mm |
Fan Support - Rear |
1x 120mm |
Radiator Support - Top |
120mm, 240mm, 360mm, (44mm max motherboard component height) |
Radiator Support - Front |
120mm, 140mm, 240mm, 280mm, 360mm, (75mm clearance) |
Radiator Support - Rear |
120mm |
Clearance - CPU Cooler |
165mm / 6.49" |
Clearance - PSU |
180mm/7.08" |
Clearance - GFX |
410mm/16.1" |
Cable Routing |
19~27mm |
Dust Filters |
Top, Front, Bottom |
Power Supply Support |
Bottom Mount, ATX |
Warranty |
2 years |
Model Number |
MCB-B520-KGNN-RGA |
COOLER MASTER MASTERBOX MB520 MESH MID-TOWER ARGB E-ATX CABINET BLACK
Free returns on all eligible orders
You have 14 days to request a return. All sale items are final sale.
Deliver in 3–5 business days
Comes with 14-Days Returns Policy
Original Brand Warranty
Works with most major systems and devices.
Please check product specs to ensure compatibility with your setup before purchasing.
Built for speed, stability, and long-lasting performance.
Ideal for gaming, office work, and everyday use.
Need help? Our support team is ready to assist you with setup, compatibility, or warranty claims.