Cooler Master Q300L V3 M-ATX 240mm Cabinet Black (Q300LV3-KGNN-S00)

₹4,259

MRP ₹5,799 (incl. of all taxes)

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The QUBE 340 / Q300L V3 is a compact Micro-ATX PC case designed for serious performance. It features high airflow cooling and optimized clearance for powerful components.

Full specifications ↓

Highlights

Supports Mini-ITX and Micro-ATX motherboards
Maximizes airflow with Cooler Master’s Thermal Excellence
Accommodates 366 mm graphics cards without front fan
Allows 178 mm CPU cooler height
Includes top, front, and bottom dust filters
Offers vertical or horizontal orientation options
Provides 2 years warranty for peace of mind
Features 2 x 120 mm / 2 x 140 mm fans at top and front

Specifications

Product Name	QUBE 340
Version	Default Version
Product Series	QUBE Series
Color - Black	Q340-KGNN-S00
Color - White	Q340-WGNN-S00
Materials	SGCC + TG / Mesh
Dimension (L x W x H) - Incl. Protrusions	386.1 x 230 x 429.4 mm
Dimension (L x W x H) - Excl. Protrusions	374 x 230 x 374 mm
Dimension (L x W x H) - Volume (Incl. Protrusions)	38.13 L
Dimension (L x W x H) - Volume (Excl. Protrusions)	32.17 L
Motherboard Support	Mini-ITX, Micro-ATX
Clearances - CPU Cooler	178 mm
Clearances - Power Supply	200 mm (without bottom fan installed); 140 mm (with bottom fan installed)
Clearances - Graphics Card	366 mm (without front fan installed)
Expansion Slots	4
Drive Bays - 5.25"	NA
Drive Bays - 3.5"	1
Drive Bays - 3.5" / 2.5" Combo	1
Drive Bays - 2.5" Drive Bay	2 (max 4)
Fans Support - Top	2 x 120 mm / 2 x 140 mm
Fans Support - Front	2 x 120 mm / 2 x 140 mm
Fans Support - Rear	1 x 120 mm / 1 x 140 mm
Fans Support - Bottom	1 x 120 mm / 1 x 140 mm
Fans Support - Side (Left/Right)	NA
Pre-installed Fans - Rear	1 x 140 mm non-ARGB Black
Radiator Support - Top	240 / 120 mm
Radiator Support - Front	240 / 120 mm
Radiator Support - Rear	120mm
Radiator Support - Bottom	N/A
Radiator Support - Side (Left/Right)	N/A
I/O Panel - USB Ports	2 x USB 3.2 Gen1 Type-A; 1 x USB 3.2 Gen 2x2 Type-C
I/O Panel - Audio In / Out	1 x 3.5 mm Mic / Audio Combo Jack
Cable Routing (Behind MB Tray)	30mm
Power Supply Support	ATX
Dust Filters	Top / Front / Bottom
Included Accessories	1 x Filter / 1 x Holder
Warranty	2 Years

Who should buy it

This case is ideal for DIY builders and system integrators who want a compact, high-performance PC case. It may not suit those needing a case for Mac systems or specific non-compatible components.

Compatibility

The QUBE 340 / Q300L V3 works with Mini-ITX and Micro-ATX motherboards. It supports 178 mm CPU coolers, 200 mm power supplies (without bottom fan), and 366 mm graphics cards (without front fan).

Mini-ITX
Micro-ATX
178 mm CPU Cooler
200 mm Power Supply (without bottom fan installed)
366 mm Graphics Card (without front fan installed)

What's in the box

Filter (with Perforations)
Headphone Holder

Frequently asked questions

What is the maximum GPU length supported?

The QUBE 340 / Q300L V3 supports 366 mm graphics cards without front fan installed.

Does it support 240mm radiators?

Yes, it supports 240 mm radiators at top and front.

What is the maximum CPU cooler height?

The case supports up to 178 mm CPU coolers.

What is the power supply size?

It supports 200 mm power supplies without bottom fan installed.

How many drive bays does it have?

It has one 3.5" drive bay and two 2.5" drive bays (max 4).

Does it have a dust filter?

Yes, it includes dust filters at top, front, and bottom.

What is the warranty period?

The QUBE 340 / Q300L V3 comes with a 2-year warranty.

Brand warranty: 2 years from the manufacturer — TechCure India helps you with the claim.

Why buy from TechCure India

Genuine product with brand warranty
GST invoice on every order
Insured delivery across India
Free compatibility check before dispatch — or build a full PC with our PC Builder

Specifications

Brand	Cooler Master
Category	PC Cabinet
Model / MPN	Q300LV3-KGNN-S00
Product Name	QUBE 340
Version	Default Version
Product Series	QUBE Series
Color - Black	Q340-KGNN-S00
Color - White	Q340-WGNN-S00
Materials	SGCC + TG / Mesh
Dimension (L x W x H) - Incl. Protrusions	386.1 x 230 x 429.4 mm
Dimension (L x W x H) - Excl. Protrusions	374 x 230 x 374 mm
Dimension (L x W x H) - Volume (Incl. Protrusions)	38.13 L
Dimension (L x W x H) - Volume (Excl. Protrusions)	32.17 L
Motherboard Support	Mini-ITX, Micro-ATX
Clearances - CPU Cooler	178 mm
Clearances - Power Supply	200 mm (without bottom fan installed); 140 mm (with bottom fan installed)
Clearances - Graphics Card	366 mm (without front fan installed)
Expansion Slots	4
Drive Bays - 5.25"	NA
Drive Bays - 3.5"	1
Drive Bays - 3.5" / 2.5" Combo	1
Drive Bays - 2.5" Drive Bay	2 (max 4)
Fans Support - Top	2 x 120 mm / 2 x 140 mm
Fans Support - Front	2 x 120 mm / 2 x 140 mm
Fans Support - Rear	1 x 120 mm / 1 x 140 mm
Fans Support - Bottom	1 x 120 mm / 1 x 140 mm
Fans Support - Side (Left/Right)	NA
Pre-installed Fans - Rear	1 x 140 mm non-ARGB Black
Radiator Support - Top	240 / 120 mm
Radiator Support - Front	240 / 120 mm
Radiator Support - Rear	120mm
Radiator Support - Bottom	N/A
Radiator Support - Side (Left/Right)	N/A
I/O Panel - USB Ports	2 x USB 3.2 Gen1 Type-A; 1 x USB 3.2 Gen 2x2 Type-C
I/O Panel - Audio In / Out	1 x 3.5 mm Mic / Audio Combo Jack
Cable Routing (Behind MB Tray)	30mm
Power Supply Support	ATX
Dust Filters	Top / Front / Bottom
Included Accessories	1 x Filter / 1 x Holder
Warranty	2 Years
Condition	New, sealed box
Warranty	Manufacturer warranty · details
Invoice	GST tax invoice (input credit available)
Delivery	Insured shipping to every serviceable pin code in India