Skip to product information
1 of 3


Cooler Master N400 Mid Tower Computer Case

Cooler Master N400 Mid Tower Computer Case

Regular price $152.99 USD
Regular price Sale price $152.99 USD
Sale Sold out
Shipping calculated at checkout.

Cooler Master N400 NSE-400-KKN2 N-Series Mid Tower Computer Case

with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

The N400 has numerous features that help it stand apart from the competition. It does so with a full array of exciting options that have been designed specifically with cooling performance in mind, especially water cooling. Its full mesh front panel and well-ventilated layout provide for a more abundant flow of air throughout the case. Fully embracing water cooling, N400 supports radiators up to 240 mm.

  • Fully meshed front panel for superior airflow
  • Supports a 240 mm water cooling radiator or two 120 mm fans on the right side or top of case
  • Two USB 3.0 SuperSpeed ports in front
  • Supports a 120 mm water cooling radiator at the rear
  • Includes two Cooler Master XtraFlo 120 mm fans (non-LED) arranged for optimum airflow with support for up to 8 fans total
  • Three dust filters (top, right side panel, and power supply) for easy maintenance

Technical Information

Motherboard Supported:   ATX

Motherboard Supported:   Micro ATX

Number of Fans Supported:   8

Number of Fans Installed:   2

Fan Size Supported:   4.72"

Fan Size Supported:   5.51"

Installed Fan Size:   4.72"


Number of External 5.25" Bays:   2

Number of External 3.5" Bays:   1

Number of Internal 3.5" Bays:   7

Number of Internal 2.5" Bays:   3

Number of Total Expansion Bays:   13

I/O Expansions

Number of Total Expansion Slots:   7


Total Number of USB Ports:   4

Front USB:   Yes

Total Number of Audio In Ports:   1

Front Audio In:   Yes

Total Number of Audio Out Ports:   1

Front Audio Out:   Yes

Power Description

Power Supply Installed:   No

Number of Power Supplies Supported:   1

Physical Characteristics

Product Color:   Midnight Black

Product Material:   Mesh

Product Material:   Polymer

Cooler Type:   Liquid Cooler

Form Factor:   Mid-tower

Height:   16.8"

Width:   7.5"

Depth:   19.7"

Weight (Approximate):   12.35 lb


Country of Origin:   Switzerland


Limited Warranty:   2 Year

Proposition 65 Warning for California Consumers

WARNING: Cancer and Reproductive Harm -

View full details