Cooler Master Mid Tower Micro-ATX/ATX Computer Case (Midnight Black)

Overview

The Cooler Master NSE-400-KKN2 is a mid tower computer case designed to provide efficient airflow, easy installation, and durable performance for both new builders and experienced upgraders. It supports Micro-ATX and ATX motherboards, accommodates graphics cards up to 12.6 inches long, and CPU coolers up to 6.4 inches tall. With two pre-installed 120 mm fans and space for up to eight fans total, this case ensures your components stay cool even under heavy workloads.

Key features

• Fully meshed front panel that promotes strong airflow directly to your hardware for better cooling efficiency
• Compatibility with both Micro-ATX and ATX motherboards, offering flexibility for various system builds
• Spacious interior that fits large graphics cards and tall CPU coolers without compromising airflow
• Pre-installed dual 120 mm fans with support for up to eight fans, allowing scalable ventilation as your system demands grow
• Generous storage options with seven 3.5-inch drive trays and three dedicated 2.5-inch SSD mounts for a balanced mix of capacity and speed
• Support for liquid cooling with mounting points for a 240 mm radiator at the top or side and a 120 mm radiator at the rear, enabling quieter and more effective thermal management
• Front panel equipped with two USB 3.0 ports for fast data transfers and convenient peripheral charging
• Three removable dust filters that help keep internal components clean and reduce maintenance effort
• Midnight Black finish that offers a sleek and understated look suitable for gaming setups, studios, or living room environments

Key specs

• Form factor: Mid tower
• Motherboard support: Micro-ATX, ATX
• Maximum graphics card length: 12.6 inches
• Maximum CPU cooler height: 6.4 inches
• Pre-installed fans: 2 x 120 mm
• Maximum fan support: Up to 8 fans
• Storage bays: 7 x 3.5-inch, 3 x 2.5-inch
• Liquid cooling radiator support: 240 mm (top or side), 120 mm (rear)
• Front panel ports: 2 x USB 3.0
• Color: Midnight Black

Connectivity and compatibility

The front panel’s two USB 3.0 ports provide high-speed connections for external drives, flash storage, and charging mobile devices, making it easy to access data or power peripherals without reaching behind the case. The case’s support for standard Micro-ATX and ATX motherboards ensures compatibility with a wide range of components, from budget builds to more advanced gaming or workstation setups.

Performance and reliability

Strong airflow is a priority with the fully meshed front panel and multiple fan mounting options, which help maintain optimal temperatures for your CPU and GPU. The ability to install liquid cooling radiators adds another layer of thermal control, reducing noise and improving performance under load. Removable dust filters protect your components from debris, extending their lifespan and reducing the need for frequent cleaning.

Ideal uses and environments

This case fits well in gaming rigs, creative workstations, and home office systems that require a balance of cooling, expandability, and clean aesthetics. Its flexible storage options and cooling support make it a solid choice for users who need to manage large media libraries or run demanding applications. The Midnight Black finish blends seamlessly into various environments, from dedicated gaming rooms to professional studios.