--- product_id: 142691402 title: "Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel, 2 x 120mm Pre-Installed Fans, Flexible Air Flow Configurations, Cable Management" brand: "cooler master" price: "5782 kr" currency: NOK in_stock: true reviews_count: 10 category: "Cooler Master" url: https://www.desertcart.no/products/142691402-cooler-master-masterbox-nr400-matx-mini-tower-case-with-tempered store_origin: NO region: Norway --- # Minimalist matte black design 2 x 120mm pre-installed high airflow fans Flush tempered glass side panel Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel, 2 x 120mm Pre-Installed Fans, Flexible Air Flow Configurations, Cable Management **Brand:** cooler master **Price:** 5782 kr **Availability:** ✅ In Stock ## Summary > 🖤 Cool, Clean, and Custom-Ready: The NR400 Means Business ## Quick Answers - **What is this?** Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel, 2 x 120mm Pre-Installed Fans, Flexible Air Flow Configurations, Cable Management by cooler master - **How much does it cost?** 5782 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/142691402-cooler-master-masterbox-nr400-matx-mini-tower-case-with-tempered) ## Best For - cooler master enthusiasts ## Why This Product - Trusted cooler master brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Flexible Cooling Options:** Supports up to 3 front fans or 280mm radiator, plus top and rear fan/radiator mounts for ultimate thermal control. - • **Room to Grow, Room to Manage:** Spacious interior fits micro-ATX/mini-ITX boards, long GPUs (up to 346mm), and smart cable routing with 22mm clearance. - • **Show Off Your Build in Style:** Tempered glass side panel offers a sleek, seamless view of your custom components—because your rig deserves to be seen. - • **Customizable Storage & PSU Space:** Repositionable HDD cage and PSU shroud let you optimize for longer power supplies or extra radiator space. - • **Breathe Easy with Full Mesh Panels:** Maximized airflow through front & top mesh with magnetic dust filters keeps your build cool and clean. ## Overview The Cooler Master MasterBox NR400 is a minimalist micro-ATX mini tower case designed for professionals who demand high airflow and sleek aesthetics. Featuring a flush tempered glass side panel, two pre-installed 120mm fans, and versatile support for multiple fan and radiator configurations, it offers impressive clearance for large GPUs and CPU coolers. Smart cable management and repositionable storage options make it a flexible, clean build solution that elevates your workspace and gaming setup alike. ## Description From the manufacturer Building a PC is a highly personalized journey. We know that components are carefully chosen based on performance, functionality, and aesthetic preference. Your personality is embedded in each of those choices, transcending from hardware to an immersive, custom-built experience. From custom PCs to all-out gaming rooms, we encourage every decision to reflect who you are. Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel The MasterBox NR400 combines versatile cooling and expandability with a minimalistic yet finely detailed design. Minimalist design, optimized performance Tempered glass side panel Versatile fan and radiator support Impressive clearances Smart internals 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. *An extra 3.5” drive can be mounted only on the ODD version (pictured). 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. Fan Support Front *: 2 x 120/140mm with ODD, 2 x 140mm or 3 x 120mm without ODD Top : 1 x 120/140mm with ODD or 2 x 120/140mm without ODD Rear *: 1 x 120mm *Case comes with 2 pre-installed 120mm fans (front & rear) Radiator Support Front * : 120/140/240/280mm* Top : 120mm with ODD, 120/240mm without ODD Rear : 120mm *280mm may interfere with HDD mounted below ODD Impressive Clearances CPU Cooler: 166mm Power Supply: 325mm (without front radiator & HDD cage), 140mm (HDD Cage in backmost position) Graphics Cards: 346mm Cable Routing: 22mm behind the motherboard tray Review: Comfortable. - I've found this case very easy to work in, the cable tie points are very handy. I would recommend getting at leas a smi-modular power supply, as there is not a lot of room to stash cables. Working with RGB fans is a bit of a nightmare but the cable tie points save it here. Good value. Review: Love this case - Solid case for the price, looks stunning, Cable management is accounted for and overall wide range of compatibility. System Config: I5 9600k oc to 4.6ghz Evga GTX 1070ti Sc Black edition 16gb 3000mhz Corsair Vengance RGB MSI B360m Bazooka Motherboard 2x 140mm Corsair LL series fans at front 1x 120mm Corsair LL series fan at rear Coolermaster masterlite 240mm radiator for CPU watercooling. ## Features - MINIMALIST DESIGN, OPTIMIZED PERFORMANCE - The NR400 features full mesh front & top panels to optimise internal air flow and cooling performance - the top panel includes a magnetic dust filter (and a fixed filter in the bottom panel) - TEMPERED GLASS SIDE PANEL - System builds can be showcased through a flush tempered glass panel, which fastens discreetly via the back panel to ensure a smooth surface along the side of the chassis - EXCELLENT FAN AND RADIATOR SUPPORT - Two 120mm fans come preinstalled in the front and rear panels - the front panel can support either 3 x 120 or 2 x 140mm fans and a radiator up to 280mm, while top supports 2 x 120/140mm fans or a 240mm radiator - IMPRESSIVE CLEARANCES - Supports both micro-ATX and mini-ITX motherboards, CPU coolers up to 166mm in height, graphics cards up to 346mm in length, and and an ATX PS2 power supply up to 140mm in length (325mm without a front radiator or HDD cage) - SMART INTERNALS - Cabling can be neatly routed through rubber grommets, while 22mm of clearance space behind the motherboard provides ample room for cable management - the HDD cage can be repositioned for a longer PSU or additional radiator space ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QP88F8B | | Antenna Location | Indoor | | Best Sellers Rank | 279,377 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 2,707 in Computer Cases | | Box Contents | Computer Case | | Brand | Cooler Master | | Brand Name | Cooler Master | | Case Type | Mini-Tower | | Case type | Mini-Tower | | Colour | Black | | Compatible Devices | Micro-ATX Motherboard | | Cooling Method | Air | | Customer Reviews | 4.4 out of 5 stars 68 Reviews | | Enclosure Material | Tempered Glass | | Fan Size | 120 Millimetres | | Global Trade Identification Number | 04719512080276 | | Hard Disk Form Factor | 2.5 Inches | | Internal Bays Quantity | 2 | | Item Dimensions D x W x H | 48D x 48W x 29H centimetres | | Item Type Name | Micro ATX mini tower case, tempered side glass, 2 x 120 mm pre-installed fans, flexible airflow and wiring management, without optical disc burner | | Item Weight | 10.43 Grams | | Light Color | Black | | Manufacturer | Cooler Master Europe B.V. | | Manufacturer Part Number | MCB-NR400-KGNN-S00 | | Material | Tempered Glass | | Model Name | NR400 | | Model Number | MCB-NR400-KGNN-S00 | | Motherboard compatibility | Micro ATX | | Number of Fans | 6 | | Number of Items | 1 | | Number of Packs | 1 | | Other Special Features of the Product | High air flow | | Power Supply Mounting Type | Rear Mount | | Product Warranty | 1 Year | | Recommended uses for product | Indoor | | Supported Motherboard | Micro ATX | | Total Expansion Slots Quantity | 4 | | Total USB 2.0 Ports | 2 | | Total USB 3.0 Ports | 2 | | Total USB Ports | 2 | | Unit Count | 1.0 count | ## Product Details - **Brand:** Cooler Master - **Case type:** Mini-Tower - **Colour:** Black - **Cooling method:** Air - **Fan size:** 120 Millimetres - **Material:** Tempered Glass - **Model name:** NR400 - **Motherboard compatibility:** Micro ATX - **Power supply mounting type:** Rear Mount - **Recommended uses for product:** Indoor ## Images ![Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel, 2 x 120mm Pre-Installed Fans, Flexible Air Flow Configurations, Cable Management - Image 1](https://m.media-amazon.com/images/I/91Ya+9RPJ0L.jpg) ![Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel, 2 x 120mm Pre-Installed Fans, Flexible Air Flow Configurations, Cable Management - Image 2](https://m.media-amazon.com/images/I/91P7kyTYp1L.jpg) ![Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel, 2 x 120mm Pre-Installed Fans, Flexible Air Flow Configurations, Cable Management - Image 3](https://m.media-amazon.com/images/I/91gXEWjsCWL.jpg) ![Cooler Master MasterBox NR400 - mATX Mini Tower Case with Tempered Glass Side Panel, 2 x 120mm Pre-Installed Fans, Flexible Air Flow Configurations, Cable Management - Image 4](https://m.media-amazon.com/images/I/81Mhx5FxgOL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Can this case fit a verticle gpu mount bracket?** A: No. It only comes with 4 PCI slots and most vertical GPU brackets require at least 7 horizontal PCI slots or a vertical PCI slot (which NR400 doesn’t). Bear in mind that vertical mounting near a glass side panel in a compact case will likely generate a lot of heat (and thus slow overall performance). **Q: Can i fit a rx 5700 xt in this case** A: Yes, the MasterBox NR400 has a total graphics card clearance of around 350mm. It supports any length of card currently available, including any model of RX 5700XT currently on the market. We hope you will enjoy the case and the building experience. **Q: does it come with any fans?** A: Yes, it comes with 2 pre-installed fans: 1 x 120mm front and 1 x 120mm rear fan. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Comfortable. *by M***S on 3 February 2021* I've found this case very easy to work in, the cable tie points are very handy. I would recommend getting at leas a smi-modular power supply, as there is not a lot of room to stash cables. Working with RGB fans is a bit of a nightmare but the cable tie points save it here. Good value. ### ⭐⭐⭐⭐⭐ Love this case *by F***R on 11 September 2019* Solid case for the price, looks stunning, Cable management is accounted for and overall wide range of compatibility. System Config: I5 9600k oc to 4.6ghz Evga GTX 1070ti Sc Black edition 16gb 3000mhz Corsair Vengance RGB MSI B360m Bazooka Motherboard 2x 140mm Corsair LL series fans at front 1x 120mm Corsair LL series fan at rear Coolermaster masterlite 240mm radiator for CPU watercooling. ### ⭐⭐⭐⭐⭐ Great case for the money *by J***. on 16 March 2021* Looks great, great cable management, great price, easy to install everything onto it, 100% recommend --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/142691402-cooler-master-masterbox-nr400-matx-mini-tower-case-with-tempered](https://www.desertcart.no/products/142691402-cooler-master-masterbox-nr400-matx-mini-tower-case-with-tempered) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-16*