Cooler Master MasterBox Q300L

Name: Cooler Master MasterBox Q300L
Brand: Cooler Master
SKU: 18
Price: 32.99 USD
Availability: InStock

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Cooler Master MasterBox Q300L Review & Specifications

The Cooler Master MasterBox Q300L, manufactured by Cooler Master, is a moderate-quality PC case tailored for Micro-Tower builds. It is built using mid-range steel, plastic, and acrylic glass and weighs approximately 3.70 kg. Its aesthetic is characterized by a Black finish and features a acrylic glass side panel, which adds both style and functionality.

The Cooler Master MasterBox Q300L supports a limited range of motherboard sizes, such as Mini-ITX, Micro-ATX. These cases are often favored for compact, high-performance setups that do not exceed Micro-ATX dimensions, making them a popular option for users seeking space efficiency. Power supply compatibility includes ATX, SFX units with a maximum supported length of 160 mm. The overall case dimensions are 387 x 230 x 378mm, offering insight into its spatial footprint.

This case supports medium to large graphics cards up to 360 mm in length, along with CPU air coolers up to 159 mm in height.

This case features moderate cooling support, including several fan mounts and radiator support up to 240 mm. It's well-suited for mainstream gaming and productivity builds where cooling is important but not extreme. For additional details and specific specifications, refer to the section below.

General Information

Manufacturer	Cooler Master
PC Case Name	Cooler Master MasterBox Q300L
Current Price Amazon	$33
Amazon Price Updated	5 days, 14 hours ago.
PC Case Available	True

Specification

Form Factor	Micro-Tower
Material / Weight	steel, plastic, and acrylic glass / 3.70 kg
Color / Side Panel	Black / acrylic glass
PC Case Dimensions	387 x 230 x 378mm

Compatibility

Motherboard Support	Mini-ITX, Micro-ATX
GPU Length / CPU Cooler Height	360 mm / 159 mm
PSU Form Factor / Max Length	ATX, SFX / 160 mm

Performance

Cooler Master MasterBox Q300L Compared to PC Cases with the Same Form Factor and Similar Performance and Features

PC Case Quality & Features per Price Table

PC_Case (Desc)	Price (Desc)	Quality/Features (Desc)	Q&F/Price (Desc)
JONSBO TK-0 Black ITX Mini Tower JONSBO TK-0 Black ITX Mini Tower View detailed specs, charts, and comparison for this PC case.	$117 JONSBO TK-0 Black ITX Mini Tower Current Amazon Price Click to view this PC case on Amazon. \| 0.0% JONSBO TK-0 Black ITX Mini Tower Price Change No significant price change detected.	58.0 pts	44.6%
Cooler Master NR200P V3 Cooler Master NR200P V3 View detailed specs, charts, and comparison for this PC case.	$163 Cooler Master NR200P V3 Current Amazon Price Click to view this PC case on Amazon. \| ↑ 16.4% Cooler Master NR200P V3 Price Change Price increased from the last update.	57.0 pts	31.5%
Cooler Master Elite 302 Cooler Master Elite 302 View detailed specs, charts, and comparison for this PC case.	$72 Cooler Master Elite 302 Price Not Available Last known price from Amazon. Currently unavailable. Click to view this PC Case on Amazon. \| 0.0% Cooler Master Elite 302 Price Change No significant price change detected.	56.0 pts	70.0%
Cooler Master NCORE 100 MAX Cooler Master NCORE 100 MAX View detailed specs, charts, and comparison for this PC case.	$425 Cooler Master NCORE 100 MAX Current Amazon Price Click to view this PC case on Amazon. \| ↑ 8.1% Cooler Master NCORE 100 MAX Price Change Price increased from the last update.	56.0 pts	11.9%
Cooler Master Elite 301 Cooler Master Elite 301 View detailed specs, charts, and comparison for this PC case.	$26 Cooler Master Elite 301 Price Not Available Last known price from Amazon. Currently unavailable. Click to view this PC Case on Amazon. \| ↓ -19.0% Cooler Master Elite 301 Price Change Price decreased from the last update.	55.0 pts	191.2%
Cooler Master MasterBox MB320L ARGB Cooler Master MasterBox MB320L ARGB View detailed specs, charts, and comparison for this PC case.	$70 Cooler Master MasterBox MB320L ARGB Price Not Available Last known price from Amazon. Currently unavailable. Click to view this PC Case on Amazon. \| 0.0% Cooler Master MasterBox MB320L ARGB Price Change No significant price change detected.	55.0 pts	70.7%
Fractal Design Ridge Fractal Design Ridge View detailed specs, charts, and comparison for this PC case.	$145 Fractal Design Ridge Current Amazon Price Click to view this PC case on Amazon. \| 0.0% Fractal Design Ridge Price Change No significant price change detected.	55.0 pts	34.1%
Cooler Master MasterBox Q300L Cooler Master MasterBox Q300L View detailed specs, charts, and comparison for this PC case.	$33 Cooler Master MasterBox Q300L Current Amazon Price Click to view this PC case on Amazon. \| ↓ -17.5% Cooler Master MasterBox Q300L Price Change Price decreased from the last update.	55.0 pts	150.0%
Fractal Design Terra Jade Fractal Design Terra Jade View detailed specs, charts, and comparison for this PC case.	$170 Fractal Design Terra Jade Current Amazon Price Click to view this PC case on Amazon. \| ↓ -15.0% Fractal Design Terra Jade Price Change Price decreased from the last update.	54.0 pts	28.6%

PC Case Comparison and Detail Specifications Table

Specification	JONSBO TK-0 Black ITX Mini To… JONSBO TK-0 Black ITX Mini Tower View detailed specs, charts, and comparison for this PC case.	Cooler Master NR200P V3 Cooler Master NR200P V3 View detailed specs, charts, and comparison for this PC case.	Cooler Master Elite 302 Cooler Master Elite 302 View detailed specs, charts, and comparison for this PC case.	Cooler Master NCORE 100 MAX Cooler Master NCORE 100 MAX View detailed specs, charts, and comparison for this PC case.	Cooler Master Elite 301 Cooler Master Elite 301 View detailed specs, charts, and comparison for this PC case.	Cooler Master MasterBox MB320… Cooler Master MasterBox MB320L ARGB View detailed specs, charts, and comparison for this PC case.	Fractal Design Ridge Fractal Design Ridge View detailed specs, charts, and comparison for this PC case.	Cooler Master MasterBox Q300L Cooler Master MasterBox Q300L View detailed specs, charts, and comparison for this PC case.	Fractal Design Terra Jade Fractal Design Terra Jade View detailed specs, charts, and comparison for this PC case.
Perf Chart
Price	$117 JONSBO TK-0 Black ITX Mini Tower Current Amazon Price Click to view this PC case on Amazon. 0.0% JONSBO TK-0 Black ITX Mini Tower Price Change No significant price change detected.	$163 Cooler Master NR200P V3 Current Amazon Price Click to view this PC case on Amazon. ↑ 16.4% Cooler Master NR200P V3 Price Change Price increased from the last update.	$72❗ Cooler Master Elite 302 Price Not Available Last known price from Amazon. Currently unavailable. 0.0% Cooler Master Elite 302 Price Change No significant price change detected.	$425 Cooler Master NCORE 100 MAX Current Amazon Price Click to view this PC case on Amazon. ↑ 8.1% Cooler Master NCORE 100 MAX Price Change Price increased from the last update.	$26❗ Cooler Master Elite 301 Price Not Available Last known price from Amazon. Currently unavailable. ↓ -19.0% Cooler Master Elite 301 Price Change Price decreased from the last update.	$70❗ Cooler Master MasterBox MB320L ARGB Price Not Available Last known price from Amazon. Currently unavailable. 0.0% Cooler Master MasterBox MB320L ARGB Price Change No significant price change detected.	$145 Fractal Design Ridge Current Amazon Price Click to view this PC case on Amazon. 0.0% Fractal Design Ridge Price Change No significant price change detected.	$33 Cooler Master MasterBox Q300L Current Amazon Price Click to view this PC case on Amazon. ↓ -17.5% Cooler Master MasterBox Q300L Price Change Price decreased from the last update.	$170 Fractal Design Terra Jade Current Amazon Price Click to view this PC case on Amazon. ↓ -15.0% Fractal Design Terra Jade Price Change Price decreased from the last update.
Form Factor	Mini-Tower	Mini-Tower	Micro-Tower	Mini-Tower	Micro-Tower	Micro-Tower	Mini-Tower	Micro-Tower	Mini-Tower
Color	balck	Black	Black	Dark Grey	Black	Micro-ATX Tower ARGB	White	Black	Jade
Side Panel	tempered glass	mesh	tempered glass	mesh	tempered glass	Tempered Glass	mesh	acrylic glass	steel
Max GPU L.	230 mm	361 mm	365 mm	337 mm	365 mm	344 mm	335 mm	360 mm	322 mm
Max CPU H.	135 mm	70 mm	163 mm	48 mm	163 mm	166 mm	70 mm	159 mm	77 mm
Max PSU L.	160 mm	130 mm	160 mm	100 mm	160 mm	325 mm	None mm	160 mm	130 mm
PSU FF	SFX	SFX	ATX, SFX	SFX	ATX, SFX	ATX, SFX	SFX	ATX, SFX	SFX

PC Case Specification Table

PC_Case (Desc)	Form Factor	Color / Side Panel	GPU Length	CPU Cooler Height	PSU Length / Form Factor
JONSBO TK-0 Black ITX Mini Tower JONSBO TK-0 Black ITX Mini Tower View detailed specs, charts, and comparison for this PC case.	Mini-Tower	balck / tempered glass	230 mm	135 mm	160 mm / SFX
Cooler Master NR200P V3 Cooler Master NR200P V3 View detailed specs, charts, and comparison for this PC case.	Mini-Tower	Black / mesh	361 mm	70 mm	130 mm / SFX
Cooler Master Elite 302 Cooler Master Elite 302 View detailed specs, charts, and comparison for this PC case.	Micro-Tower	Black / tempered glass	365 mm	163 mm	160 mm / ATX, SFX
Cooler Master NCORE 100 MAX Cooler Master NCORE 100 MAX View detailed specs, charts, and comparison for this PC case.	Mini-Tower	Dark Grey / mesh	337 mm	48 mm	100 mm / SFX
Cooler Master Elite 301 Cooler Master Elite 301 View detailed specs, charts, and comparison for this PC case.	Micro-Tower	Black / tempered glass	365 mm	163 mm	160 mm / ATX, SFX
Cooler Master MasterBox MB320L ARGB Cooler Master MasterBox MB320L ARGB View detailed specs, charts, and comparison for this PC case.	Micro-Tower	Micro-ATX Tower ARGB / Tempered Glass	344 mm	166 mm	325 mm / ATX, SFX
Fractal Design Ridge Fractal Design Ridge View detailed specs, charts, and comparison for this PC case.	Mini-Tower	White / mesh	335 mm	70 mm	None mm / SFX
Cooler Master MasterBox Q300L Cooler Master MasterBox Q300L View detailed specs, charts, and comparison for this PC case.	Micro-Tower	Black / acrylic glass	360 mm	159 mm	160 mm / ATX, SFX
Fractal Design Terra Jade Fractal Design Terra Jade View detailed specs, charts, and comparison for this PC case.	Mini-Tower	Jade / steel	322 mm	77 mm	130 mm / SFX

Additional PC Case Information

Fan Support:

Pre-installed Fans - Rear1x 120mmFan Support - Front2x 120/140mmFan Support - Top2x 120mmFan Support - Rear1x 120mmFan Support - Bottom1x 120mm

Radiator Support:

Radiator Support - Front120 / 240mm Radiator Support - Front120mm Radiator Support – Rear120mm

HDD / SSD Support:

5.25" Drive Bays03.5" Drive Bays12.5" Drive Bays2

Front Ports:

1x 3.5mm Audio Jack, 1x 3.5mm Mic Jack

Dust Filters:

Yes

Additional Information:

None