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Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

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TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest in Pre-Owned Gear & Peace of Mind!

Extend coverage on pre-owned products after the retailer warranty ends and protect photo & video gear from accidental damage with Adorama Protect.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Extended Protection

Coverage for pre-owned gear begins after the retailer warranty ends, plus accidental damage protection for photo/video gear that starts on day one.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Malfunction Protection

Malfunction Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for International and U.S. territories purchases. Plans on pre-owned items do not cover pre-existing damages.

CoolerMaster MasterBox NR400 Specifications

  • Color

    Black

  • Material

    Body: Steel, Plastic
    Side Panel: Tempered Glass

  • Series

    MasterBox Series

  • Size

    Mini Tower

  • Motherboard Support

    Micro ATX, Mini ITX

  • Expansion Slots

    4

  • Drive Bays

    5.25": 1
    3.5": 4
    2.5": 4

  • I/O Panel

    2x USB 3.0, 1x 3.5mm Headset Jack (Audio+Mic)

  • Pre-Installed Fans

    Front: 1x 120mm
    Rear: 1x 120mm

  • Fan Support

    Front: 2x 140mm, 2x 120mm
    Top: 1x 140mm, 1x 120mm
    Rear: 1x 120mm

  • Radiator Support

    Front: 120mm, 140mm, 240mm, 280mm (may interfere with HDD mounted below ODD)
    Top: 120mm
    Rear: 120mm

  • Clearance

    CPU Cooler: 6.54" (166mm)
    PSU: 12.8" (325mm) (w/o front radiator & HDD cage), 5.5" (140mm) (HDD cage in backmost position)
    GFX: 13.6" (346mm)

  • Cable Routing

    Behind Motherboard Tray: 0.87" (22mm)

  • Dust Filters

    Top, Bottom

  • Power Supply Support

    Bottom mount, ATX PS2

  • Dimensions (L x W x H)

    16.18 x 8.62 x 16.18" (411 x 219 x 411mm)

About CoolerMaster MasterBox NR400 Micro-ATX Tower Case with Front Mesh Ventilation

Streamlined, By Definition
Simplicity in aesthetics rarely reflect complexity in design. Cooler Master's signature Fine Mesh spans the entire front panel for open airflow, makes up the structure of the case, and adds rigidity to its overall construction. Meticulously engineered for unhindered airflow, the MasterBox NR400 applies bold performance to a pure-and-simple design.

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 4 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.

CoolerMaster MasterBox NR400 Micro-ATX Tower Case with Front Mesh Ventilation Features

  • Minimalistic Design
  • Seamless Tempered Glass
  • Ample Storage Support
  • Versatile HDD Cage
  • Headset Jack
  • Fan Support
  • Radiator Support
  • Component Clearances

What's in the box:

  • Cooler Master MasterBox NR400 Micro-ATX Tower Case
  • Tool Kit
  • Original Box