$199^.99

Limit 99999 per customer.

Sold by NeweggBusiness

Price alert

Customer images

Cooler Master MasterFrame 400 mATX Modular PC Case - Micro-ATX/Mini-ITX, Aluminum Open Frame Chassis, 1 x ARGB Fan Preinstalled, 390mm GPU, 360mm Radiator Support, Black

Color: Black

Flexible Layouts
Switch between vertical, horizontal, or inverted layouts to fit your desk, workflow, and style.
Build Your Way
The aluminum open-frame design delivers structural rigidity, clean airflow, and a bold, functional aesthetic.
Compact Yet Powerful
Fits Mini-ITX and Micro-ATX builds with space for up to nine fans,
a top-mounted 360 mm radiator, and 390 mm GPUs with anti-sag support for cool, stable performance.
Quick Access, Zero Hassle
Magnetic tool-free mesh panels provide quick access for upgrades, maintenance, and cable management, streamlines your build.
Future-Ready Connections
Front I/O includes USB 3.2 Gen 2x2 Type-C, dual USB 3.2 Gen 1 Type-A, and combo audio, giving you the speed and convenience modern setups demand.
Modern Front I/O
Equipped with USB 3.2 Gen 2 Type-C, dual USB 3.2 Gen 1 Type-A ports, and a combo audio jack for fast connectivity and charging.
Tool-Free Panel Removal
Easily remove side panels without tools for quick access and modifications during build or upgrades.

Overview

Specs

Reviews (1)

Expansion
Internal 3.5" Drive Bays	1
Internal 2.5" Drive Bays	1

Front Panel Ports
Front Ports	2 x USB 3.2 Gen 1 Type A / 1 x USB 3.2 Gen 2 x 2 Type C 1x 3.5MIc/ Audio Combo Jack

Cooling System
Fan Options	Front: 2 x120mm / 1 x 140mm, 1 x 180mm, 1 x 200mm(Conditional Support) Top: 3 x120mm / 2 x 140mm / 2 x 180mm, 2 x 200mm (Fan thickness = 25.5mm) Rear: 1x 120 mm Bottom: 3x 120mm, 2x 140mm, 2x 180mm, 2x 200mm, and all fans up to 30mm thick.
Pre-installed Fans	Rear: 1x Sickle Flow 120 mm ARGB Black / 1x Sickle Flow 120 mm ARGB White
Radiator Options	Rear - Up to 120mm / Top - Up to 240mm / Top - Up to 280mm / Top - Up to 360mm

Additional Information
First Listed on Newegg	April 16, 2026

Warranty & Returns