MARS GAMING MC-ONYX WHITE MINI-TOWER CASE

MC-ONYX

MicroATX Case

The MC ONYX is a high-performance microATX case designed to deliver extreme airflow in a compact format. Its metallic mesh front maximizes air intake, while the tempered glass side window clearly displays your hardware. It includes 3 ARGB 120 mm fans with FDB bearings (2 front + 1 rear) and support for liquid cooling up to 240 mm at the top, as well as space for up to 7 120 mm fans. All of this with a separate lower PSU chamber, GPUs up to 292 mm, and CPU coolers up to 165 mm.

• High-flow metallic mesh front
• 3 ARGB FDB 120 mm fans included
• Support for up to 7 120 mm fans and 240 mm radiators (top)
• Tempered glass side window
• Separate lower chamber for the power supply for a clean and better-ventilated interior

High-Performance Metallic Mesh Front

The micro-perforated metal mesh front allows extreme airflow directly to the front fans, keeping temperatures under control even in demanding gaming setups. The mesh also helps filter dust, preserving internal cleanliness over time.

Advanced ARGB Cooling as Standard

The MC-ONYX arrives ready to perform with 3 ARGB 120 mm fans with FDB bearings:

2 front intake fans + 1 rear exhaust fan, combining powerful airflow, low noise, and long lifespan.

It supports up to 7 120 mm fans and up to 240 mm radiators at the top, so you can choose between air or liquid cooling without limitations. Its multiple ARGB lighting effects bring a vibrant and spectacular aesthetic to the system.

Tempered Glass and Separate PSU Chamber

The tempered glass side window turns the MC ONYX into a perfect showcase for your motherboard, GPU, and cooling. The separate lower chamber for the power supply hides the PSU and main cabling, improving airflow to the GPU area and leaving a cleaner and more orderly interior.

Compact, Powerful, and Versatile

Designed for microATX and Mini-ITX builds, the MC-ONYX offers space for graphics cards up to 292 mm and CPU coolers up to 165 mm, allowing you to assemble very powerful gaming or work configurations in a reduced format. Ideal for desks with limited space or setups looking for a balance between size and performance.

Essential Connectivity at Your Fingertips

The front panel integrates 1x USB 3.0, 1x USB 2.0, and HD audio connections, facilitating quick access to your peripherals, headphones, and external drives without having to reach the back of the PC.

Specifications

General Features

Format: Mini-Tower

Weight: 3.05 kg

Dimensions: 340 x 200 x 395 mm

Color: Black / White

Design: Dual chamber with internal cable management system

Window: Side and front with metallic mesh

Lighting: Yes

Lighting Type: RGB

Power Supply Included: No

Power Supply Compatibility: ATX

Motherboard Compatibility: MicroATX / Mini-ITX

Expansion Slots: 4

Storage

Internal Bays: 1 x 3.5 inch HDD + 1 x 2.5 inch SSD

Alternative Bay Configuration: 2 x 2.5 inch SSD

Alternative Bay Configuration: 2 x 3.5 inch HDD

Cooling

Fan Capacity: Up to 7 x 120 mm

Included Fans: 2 x front 120 mm RGB Chroma + 1 x rear 120 mm RGB Chroma

Fan Speed: 1000 RPM

Maximum CPU Cooler Height: 165 mm

Liquid Cooling: Up to 240 mm

Maximum Radiator Size: 275 x 120 x 52 mm (240 mm)

Fan Power Connectors: MOLEX

Graphics Compatibility

Maximum GPU Length: 292 mm

Maximum GPU Width: 155 mm

Front Connectivity

Ports: 1 x USB 3.0

Ports: 1 x USB 2.0

Audio: HD Audio + Mic

Internal Space

Internal Measurements: Width 18 cm / Height 28 cm / Length 29.7 cm