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Cooler Master · Micro-Tower · Tempered glass

Cooler Master MasterBox MB320L ARGB

Mini-ITX, Micro-ATX · Micro-ATX Tower ARGB

Quality
55
Quality / price
71
Max GPU
344 mm
Amazon
$70
Cooler Master MasterBox MB320L ARGB
View Cooler Master MasterBox MB320L ARGB Gallery in high resolution
$70
Not currently available Updated Feb 16, 2026
Overall quality55.0
Quality / price70.7
Cooling support13
$70 on Amazon Case table Compare this case

Check this case with a complete fit chainSelect a CPU and motherboard first; the Builder will then verify board size and GPU clearance. Start the compatibility check

Written analysis

Cooler Master MasterBox MB320L ARGB at a glance

The Cooler Master MasterBox MB320L ARGB is a Micro-Tower chassis with a tempered glass side panel profile. Supported boards: Mini-ITX, Micro-ATX. Primary materials are listed as steel, plastic, and tempered glass. RGB lighting is included.

Overall quality is 55.0, summing compatibility, cooling, storage, build quality, and connectivity. Max GPU length is 344 mm. Max CPU cooler height is 166 mm. Largest radiator support is listed at 280 mm.

Best fit: General desktop builds where form factor, I/O, and value outweigh extreme clearance.

Cooling and front I/O

Front ports: 2x USB 3.2 Gen 1 (USB 3.0), 1x 3.5mm Audio Jack, 1x 3.5mm Mic Jack. Dust filters: Yes.

Current value

At $70, quality / price is 70.7. Compare nearby cases of the same form factor below; clearance and panel type can outweigh a small quality gap.

Chassis data

Full specifications

Construction, clearances, cooling, storage, front I/O, and quality metrics in one technical sheet.

General

Manufacturer
Cooler Master
Case
Cooler Master MasterBox MB320L ARGB
Form factor
Micro-Tower
Side panel
Tempered glass
Launch price
—
Amazon price
$70
Amazon availability
Not currently available
Price updated
Feb 16, 2026

Construction

Material
steel, plastic, and tempered glass
Color
Micro-ATX Tower ARGB
Side panel detail
Tempered Glass
Dimensions
435.5 x 217.5 x 410mm
Weight
5.47 kg
PSU shroud
Yes
RGB lighting
Yes

Quality & value

Overall quality
55.0
Compatibility
14
Cooling support
13
Storage score
10
Build quality
11
Connectivity
7
Quality / price
70.7

Compatibility / clearances

Motherboard sizes
Mini-ITX, Micro-ATX
Max GPU length
344 mm
Max cooler height
166 mm
Max PSU length
325 mm
PSU form factor
ATX, SFX
PSU included
No

Cooling

Max radiator
280 mm
Fan support
Fan Support - Rear1x 120mm Fan Support - Top2x 120/140mm Fan Support - Front3 x 120mm* / 2 x 140mm
Radiator support
Radiator Support - Front240mmRadiator Support – Top240mm
Pre-installed fans
Not specified
Dust filters
Yes

Storage & I/O

Drive bays
2.5" Drive Bays:2, 3.5" Drive Bays2
Expansion slots
4
Front ports
2x USB 3.2 Gen 1 (USB 3.0), 1x 3.5mm Audio Jack, 1x 3.5mm Mic Jack
USB-C
Not listed

Additional information

Also listed as
MasterBox MB320L

Amazon

Price history

Nearby quality

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Mesh intakes large mesh intakes span each side of the front panel to provide additional airflow to system

Dual ARGB fans 2 pre-installed 120 millimeter ARGB fans can be managed by the motherboard connected by the included splitter to create a comprehensive ARGB lighting system

Tempered glass hardware custom-loop cooling or the pure pride of showing off the build in panoramic view through an edge-to-edge tempered glass side panel

Adaptable drive cage: The drive cage is movable 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 a total of 6 120 millimeter fans and front top and rear radiator placement ensures that you don’t have to compromise on performance

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