Cooler Master MasterBox NR400
Tower | micro ATX | windowed side panel | no power supply (ATX / PS/2) | black | USB/Audio
Main Specification
| Product Description | Cooler Master MasterBox NR400 - tower - micro ATX |
|---|---|
| Product Type | System cabinet |
| Form Factor | Tower |
| Windowed Side Panel | Yes |
| Colour | Black |
| I/O Connectors | 2 x USB 3.0 1 x microphone 1 x headphones |
| Supported Motherboards | microATX, Mini-ITX |
| System Cabinet Features | Meshed front panel, meshed top, supports 120 mm radiator in rear, bottom dust filter, supports 120/140/240/280 mm radiator in front panel, supports 120/240 mm radiator in top, top magnetic dust filter |
| Power Device | No power supply (ATX / PS/2) |
| Dimensions (WxDxH) | 21 cm x 41.1 cm x 41.1 cm |
| Weight | 5.56 kg |
General
| Form Factor | Tower |
|---|---|
| Windowed Side Panel | Yes |
| Max Mainboard Size | Micro ATX |
| Supported Motherboards | microATX, Mini-ITX |
| Internal Bays Qty | 7 |
| Product Material | Plastic, steel, tempered glass |
| Colour | Black |
| Cooling System | Front: 120 mm fan x 1 / 3 x 120 mm or 2 x 140 mm fan supported Rear: 120 mm fan x 1 Top: 120/140 mm fan mount x 2 |
| CPU Cooler Max Height | 166 mm |
| Video Card Max Length | 346 mm |
| System Cabinet Features | Meshed front panel, meshed top, supports 120 mm radiator in rear, bottom dust filter, supports 120/140/240/280 mm radiator in front panel, supports 120/240 mm radiator in top, top magnetic dust filter |
Expansion / Connectivity
| Expansion Bays | 3 (total) / 3 (free) x internal - 3.5" 4 (total) / 4 (free) x internal - 2.5" |
|---|---|
| Expansion Slots | 4 |
| Interfaces | 2 x USB 3.0 1 x microphone - mini-jack 1 x headphones - mini-jack |
Power
| Power Device | No power supply |
|---|---|
| Specification Compliance | ATX / PS/2 |
Dimensions & Weight
| Width | 21 cm |
|---|---|
| Depth | 41.1 cm |
| Height | 41.1 cm |
| Weight | 5.56 kg |
Dimensions & Weight (Shipping)
| Shipping Width | 27.8 cm |
|---|---|
| Shipping Depth | 48 cm |
| Shipping Height | 48 cm |
| Shipping Weight | 6.59 kg |
Product features
Minimalistic design
The MasterBox NR400 is a pure and simple design that is focused on airflow performance. A single-layer, fine mesh makes up the entire front panel, achieving efficient airflow while also acting as a dust filter.Seamless tempered glass
The tempered glass side panel sits completely flush against the chassis, mounted securely and discreetly by a system of tabs and thumbscrews.Ample storage support
A total of 4 x 2.5" and 3 x 3.5" drives can be mounted using a tool-less system. Storage can be mounted on the PSU shroud, behind the motherboard tray, and within the versatile HDD cage.Versatile HDD cage
The HDD cage is (re)movable. The cage can be shifted forward to make room for a longer PSU, backwards for additional radiator space, or completely removed if HDD storage is not needed.Headset jack
The single 4 pole headset jack features both audio and microphone capabilities simultaneously so that separate jacks are not needed.Key selling points
- Minimalistic design
- Seamless tempered glass
- Ample storage support
- Versatile HDD cage
- Headset jack
References
MPN: MCB-NR400-KGNN-S00
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04/06/2026 01:33:37