Cooler Master MasterFrame 400 Mesh Black
ATX, mATX, Mini-ITXColour2
Product details
The Cooler Master MasterFrame 400 Mesh Black is a mid-tower computer case designed for optimal airflow and component compatibility. Featuring a mesh front panel and multiple ventilation points, this chassis allows for efficient cooling for high-performance systems. It supports ATX, Micro-ATX, and Mini-ITX motherboards and has dimensions of approximately 50 cm in height, 21 cm in width, and 45 cm in depth. It includes several dust filters at the front, top, and bottom to keep the internal components clean. The side panel made of tempered glass provides a clear view of the installed hardware while maintaining robustness. Storage options include two drive bays for 3.5-inch drives and four for 2.5-inch drives, allowing for various storage configurations. Cooling support includes up to seven 120mm fans or six 140mm fans, with radiator support for 360mm units at the front, 280mm at the top, and 120mm at the rear. The case features a power supply cover for clean cable management and several rubber grommets for cable routing. The front connections consist of two USB 3.0 ports, one USB 2.0 port, and audio jacks. Tool-less mounting mechanisms for side panels and drive bays simplify the assembly process. The interior provides ample space for graphics cards up to 41 cm in length and CPU coolers up to 17 cm in height. Primarily made of steel with plastic accents, the case offers structural rigidity while weighing approximately 8.5 kg. The black finish provides a neutral appearance suitable for various build themes. This chassis represents a successor model in the Cooler Master product line, focusing on practical thermal performance and build comfort for PC enthusiasts.
PC case design | Midi tower |
3.5" drive bays (internal) | 2x |
Max. length graphics card | 410 mm |
Max. height CPU cooler | 170 mm |
PC case features | Side windows |
Item number | 65453504 |
Manufacturer | Cooler Master |
Category | PC case |
Manufacturer No. | MF400M-KHNN-S00 |
Release date | 1.12.2025 |
Sales rank in Category PC case | 423 of 3282 |
Colour | Black |
Exact colour description | Black |
Material group | Glass, Metal, Plastic |
Material | Plastic, Steel |
PC case design | Midi tower |
Form factor | ATX, Micro ATX (mATX), Mini-ITX |
3.5" drive bays (internal) | 2x |
"Number of 2.5"" drive slots" | 4x |
Max. length graphics card | 410 mm |
Max. height CPU cooler | 170 mm |
PC case features | Side windows |
Number of fans | 7x |
Number of fan slots | 7x |
Fan location | Front side, Rear side, Top side |
Radiator locations | Front side, Rear side, Top side |
Cooling properties | Water cooling possible |
Radiator mount locations | 1x max. 120mm, 1x max. 280mm, 1x max. 360mm |
CO₂ emissions | 56.38 kg |
Climate contribution | CHF 1.34 |
Scope of delivery | Power supply cover, Rubber bushings, Several dust filters, tool-free assembly mechanisms, Toughened safety glass |
Height | 50 cm |
Length | 45 cm |
Width | 21 cm |
Weight | 8.50 kg |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «PC case» category have a defect within the first 24 months?
Source: Digitec Galaxus- 19.Montech0.6 %
- 19.MSI0.6 %
- 23.Cooler Master0.7 %
- 23.LC-Power0.7 %
- 25.Akyga1 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- 9.Deepcool3 days
- 9.Lian-Li3 days
- 11.Thermaltake5 days
- 12.Cooler Master9 days
- 12.Corsair9 days
Return rate
How often is a product of this brand in the «PC case» category returned?
Source: Digitec Galaxus- 21.AeroCool4.6 %
- 21.Cougar4.6 %
- 23.Cooler Master4.8 %
- 24.Deepcool5.1 %
- 25.Havn5.2 %

