Cooler Master MasterBox MB311L ARGB Chassis


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Cooler Master MB311L ARGB Specs

Motherboard Support Micro-ATX, Mini-ITX
External Drive Bays None
Internal Drive Bays 2 x 2.5/3.5″

2 x 2.5″

Expansion Slots 4 x Full Height
Maximum GPU Length 13.54″ / 344 mm
CPU Cooler Height 6.54″ / 166 mm
Supported PSU Size ATX
Maximum PSU Length 12.80″ / 325 mm
Fan Mounting (Front) 3 x 120 mm
2 x 140 mm
Fan Mounting (Rear) 1 x 120 mm
Fan Mounting (Side) None
Fan Mounting (Top) 2 x 140 mm
2 x 120 mm
Fan Mounting (Bottom) None
Fans Included (Front) 2 x 120 mm LED
Maximum Radiator Size (Front) 280 mm
Maximum Radiator Size (Rear) 120 mm
Maximum Radiator Size (Top) 240 mm
Fan Mounting (Internal) None
Fan Controller Included No
Filter Locations Bottom, Front, Top
Connections 2 x USB Type-A (USB 3.1 / USB 3.2 Gen 1)
Media Card Slots None
Audio Connections 1 x 3.5 mm Input
1 x 3.5 mm Output
Display Connections None
Windowed Panel Yes
Material Tempered Glass, Steel, Plastic
Built-In Lighting No
Security None
Dimensions (W x H x D) 8.56 x 16.14 x 17.15″ / 217.5 x 410 x 435.5 mm
Weight 12.06 lb / 5.47 kg
Warranty Length Limited 2-Year Warranty
Packaging Info
Package Weight 12.5 lb
Box Dimensions (LxWxH) 19.9 x 19 x 11″

Additional information

Dimensions 40 × 21 × 36.6 cm

Cooler Master

RGB Lighting


Max GPU Length


Max CPU Height


Motherboard Size

mATX, Mini ITX

PSU Incl


2 Years Warranty T&C Apply


Once Order has been made Tech Guy SA Will confirm stock and order Stock from Supplier.
Should Stock be on Back Order. Customer will be notified for the go ahead. 1-5 Days before Dispatch

T&C Apply

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  1. Awesome case last one i had was a cooler master from 2003 so hopefully i keep this for as long or so

    my only complaint is the LED connecter pin is labled wrong and in the manual either that or gigabyte updated their pins had to use the Asus/MSI pin then boom worked perfectly fine.

    Do wish the PCIE plate could be detached not snapped off

    MarcC (verified owner)

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