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Case

Cooler Master MasterBox NR400 (w/ODD) MicroATX Mid Tower Case

(10 Ratings, 4.6 Average)

Prices

Merchant Base Promo Shipping Tax Availability Total
$79.99 Out of stock $79.99+ Buy
$89.95 In stock $89.95+ Buy
$116.40 In stock $116.40+ Buy
( 5 new from $116.40 . Last updated 9 minutes ago. )

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Specifications

Manufacturer

Cooler Master

Part #

MCB-NR400-KG5N-S00

Manufacturer

Cooler Master

Type

MicroATX Mid Tower

Color

Black

Power Supply

None

Side Panel Window

Tempered Glass

Power Supply Shroud

Yes

Front Panel USB

USB 3.2 Gen 1 Type-A

Motherboard Form Factor

  • Micro ATX
  • Mini ITX

Full-Height Expansion Slots

4

Half-Height Expansion Slots

0

Maximum Video Card Length

346 mm / 13.622"

Dimensions

  • 411 mm x 210 mm x 411 mm
  • 16.181" x 8.268" x 16.181"

External 5.25" Bays

1

Internal 2.5" Bays

4

Internal 3.5" Bays

4

Volume

  • 35.473 L
  • 1.253 ft³

Price History

    Reviews

    adambomb_
    • 54 points
    • 13 months ago

    from completed build Sleek NR400 Build

    Initial quality of the case seems good. I believe GamersNexus had a QC issue with the big brother of the NR400, the NR600, where the glass panel wasn't flush with the front of the frame. Thankfully my NR400 doesn't suffer from this. I haven't found any sharp edges (yet), and overall haven't found anything to complain about regarding quality.

    The tempered glass side panel is inside of a slim frame that makes it easy to handle. Unlike its big brother, the NR400's drive cage in the basement is removable, which means larger (see: normal size) PSUs will fit in it. Unfortunately, Cooler Master confirmed that the version without the ODD bay will NOT be coming to the US, which was a bummer since I wanted that version for the clean slab appearance of the front mesh panel. Fortunately the ODD bay is removable with four screws that are easy to access, and the slot in the front doesn't bother me as much as I thought it would. I was able to fit two 140mm Silent Wings 3 fans between the front grille and the frame with ease, and cutouts for their cables were conveniently placed for routing. Cable management is decent, though at this price point I didn't expect it to blow me away anyway.

    Overall, if you're looking for a high-airflow case in the $50-70 USD range that would look nice as gaming or office PC but somewhat sheds the gamer aesthetic, this is my recommendation.

    LabtecLCS
    • 22 points
    • 12 months ago

    from completed build Revision³ - A E S T H E T I C

    For the price, you're getting a pretty solid mATX case. I was looking for something of its size with a tempered glass side panel, plenty of ventilation, room for cable management, and a PSU shroud- all of which this has. Build quality is pretty good, and it's easy to disassemble. There's a good amount of room under the shroud and behind the motherboard tray for cable management (more if you remove the hard drive tray). Overall a great case for what you're paying.

    Also, for anyone planning on using this case: PCPP claims most power supplies are too big for the case, when they actually aren't. The hard drive cage is adjustable and can be moved.

    manateeKSA
    • 13 points
    • 9 months ago

    Great airflow but not very good for first time builders as with most MicroATX cases. It looks nice and has cable grommets at its price so it's great anyways.

    Adanvc
    • 12 points
    • 6 months ago

    from completed build Monochrome.

    Good airflow in a MicroATX case is rare, but this lil' case has it plenty. It has such a nice and elegant look which was what I was looking for. Plenty of space inside to work and do cable management. It is also very easy to clean due to the mesh front panel and the magnetic dust filter it has on the top and the bottom.

    It comes with two pre-installed 3-pin fans and I got a nice surprise when I discovered a molex fan splitter pre-connected on the front fan! This goes connected directly to the power supply and you can hook up to three fans in this way! Not counting the ones you can connect directly to your motherboard, so if your motherboard has 2 additional fan connections (which most micro ATX motherboards do), you can hook up to five fans in this case without the need to get a fan splitter! Talk about value!

    The only downside is that cable management can get a bit cramped if you're using a non-modular power supply, but nothing that a few rubber bands to hold the remaining cables cannot solve. Overall I'm very satisfied with this case I totally recommend it!

    Killerplank
    • 8 points
    • 4 months ago

    from completed build NR400 Ryzen 5 1600AF $800

    Awesome case! Love that some companies are still offering great cases with the 5.25" bay. Cable management and drive mounting options are great, as well as ability to expand more fans and coolers if one desired. It throws me off that the USB 3.0 ports on top are not blue-colored, and the headphone jack should really be the frontmost port. I would also like some usb type-C ports in a perfect world, however. The included fans are a little cheap and noisy. One of the thumbscrews on the back fits the threads on the case a little wonky.

    For the money its great and I can definitely recommend it.

    ciabata
    • 6 points
    • 4 days ago

    from completed build Small, Dark, and Handsome

    Great mATX case with mediocre fans (replaced both). Easy to build in with good cable management. Removing the 5.25" bay and hard drive cage, I fit a 280mm rad in the front and 2 140mm top fans with just a little finagling. I'd give it 5 stars if it came with better fans.

    Chatinga1
    • 5 points
    • 4 months ago

    from completed build Time Capsule

    This case is quite lovely. Taking off the glass is fairly simple too. Easy cable management as well.

    Pom451
    • 4 points
    • 1 month ago

    from completed build $1200 Corona Build

    Only con is that the included fans are noisy, and some people may not like all the open air from both front, top, and rear panels being mesh.

    Pros: - Coolest and simplest 2.5in drive mounting system, its toolless and the drives don't move unless your trying to take em out. - Plenty of cable management in the back - Hides the PSU in case it doesn't match your theme (Which also hides the rats nest from non modular PSUs) - On the cheaper end of name brand cases

    samoorai
    • 3 points
    • 9 months ago

    Very easy to work with, cable management was a breeze. You can remove the HDD bays on the bottom to create more space for your PSU if need be.

    Dr.eamer82
    • 3 points
    • 4 months ago

    from completed build First PC

    Bought this used off of amazon. I guess I got lucky because the only thing missing from the package were the instructions. Yes, I know ODD's are phasing out, but I still keep it for the option of maybe putting in something like a blueray player. Besides that it just checked all the boxes: tinted glass side panel, front & top ventilation, power supply shroud to hide the birds nest, cable grommets and plenty of mounting options for a ridiculous amount of storage.

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