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Item#: N82E16811119277

Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

  • Polymer, mesh front bezel ATX Mid Tower
  • USB 3.0 x 2 (int.), USB 2.0 x 2, Mic x 1, Audio x 1 (supports AC97 / HD Audio) Front Ports
  • 2 External 5.25" Drive Bays
  • 7 Internal 3.5" Drive Bays
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Learn more about the Cooler Master NSE-400-KKN2 (N400)

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Cooler Master NSE-400-KKN2 (N400)

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  • Kevin A.
  • 8/19/2014 11:39:51 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

3 out of 5 eggsRecessed motherboard tray blocks Z97-Pro SATA ports

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Price, 2 very quiet fans with long cables and detachable MOLEX pass-through adapters, flat top (with hole grid, no fan) for putting your stuff on, lots of screws, includes cool little Phillips slot cylinder that slips over the hex brass m/b spacer mounts (forgetting the proper name) for driving them in.

Cons: UNUSABLE with an ASUS Z97-Pro motherboard!
"HORRIBLE", as others have said. UNFORTUNATE for CoolerMaster.

The recessed area for the motherboard is barely bigger than the mother board and blocks the lower row of SATA ports. This includes 1 of the 2 ports in the black block (vs. gray) that aren't SATAexpress. UNAVOIDABLE, UNFIXABLE without sawing up the plate.


Instructions show the wrong illustrations and count for some screws and parts. e.g. Hex head screws for mother board are shown as round head.

Other Thoughts: Bought locally at a computer super store. (Friend needed easy returns, et al.)
A motherboard speaker is included in the accessory bag.
Except for having to return it, I was very happy with this case.
ASUS Z97-Pro (WiFi ac)

Does Newegg have incompatible part checking?
Intel Core i5-4690K
8GB Crucial Ballistix Memory (1600 no OC)
Crucial X500 PS
WD Black 1TB WD1003FZEX

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  • Charles S.
  • 7/21/2014 9:23:00 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsNice Case

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Power supply at the bottom.
USB 3.0 and 2 connecters on the front.
A lot of room for large video cards and whatever else you want to put in it.
Lots of fan and water cooling options supported.

Cons: I would have liked to have had a few more exit holes in the MB mounting plate so I could have routed my power cables differently. Hard to explain but there are no exit holes in the plate. Many cases have two or three cable exit holes so you can pull cables from the back in the middle and top of the case.
Needed a couple more plastic HD mounting hardware It supports 4 HD's but only received two plastic locks. I just used some spare screws so it wasn't any real issue.
I have to open the case to remove and clean the filters.

Other Thoughts: I got this case on sale for less than $40 US. I wasn't expecting much and even planned on throwing it away if I had trouble with it. What a surprise I had when I started working with it. Very nice and easy to install my components.
I installed a water cooler for my CPU. It has two fans pulling cool outside air through the radiator. I had two different options so the case supported the feature well. It took me longer to decide which place to mount the radiator and which way the air should go than it did to do the actual mounting.

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  • Tyler W.
  • 7/11/2014 6:03:50 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsShould have gotten the N600

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: 1. Airflow seems fine, lots of places for mounting fans. I was able to mount a 120mm radiator to one of the top fan mounts in a pull config and also mount another 120 fan at the top next to it. If it was mounted at the rear, the radiator would block one of the top 120 mounts. A 240 at the top wouldn't clear the RAM modules, but your motherboard design may vary.

2. Build quality is great. Love how the front panel comes off clean without pulling wires out with it. All black parts and cables make it look very nice. Comes with a nice selection of hardware and JUST enough standoffs for an ATX motherboard (yes, you have to install standoffs in this case).

Cons: 1. I really want to echo what ROBERT W. already noted. The motherboard tray sits in a depression in the back panel of the case. This means an ATX motherboard with side-facing SATA ports will be extremely hard or impossible to access. If I had a right angled SATA connector that faced the right way, it wouldn't be such a big deal. However, none of the SATA cables I have want to work well with the case and motherboard.

2. Poor cable management. There is almost no room behind the motherboard tray, and there is only one opening next to the PSU. If you utilize this opening for your power cables, you HAVE to run them through the side 240 "radiator mount". So, if you actually do put a 240 rad here, you cannot route any thicker cables through it. I installed two 120 fans here for additional air intake and I could squeeze my 8 pin cable through the small space between the fan mount, but it's far from ideal. This case was not designed for cable management. There's really no way to see this based on the photos provided here. (Hey Newegg, I know it's a newer case, but a video review would be great so we can all get a look at the backside!)

Other Thoughts: In hindsight, I should have researched my case choice a little better. The N600 is another mid tower with seemingly more room for cables and everything else, and still at a decent price. I may end up returning this case and trying out the "larger version" of this case. If you have a decent amount of hardware to install (2+ drives, anything in the expansion bays, longer graphics card, etc.), move up. I'll admit it's a nice looking case, but the design limitations I mentioned above make me regret this purchase.

1 out of 1 people found this review helpful. Did you? Yes No

  • MICHAEL H.
  • 7/5/2014 10:56:12 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsNice Cheap Case!

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Front face is glossy black plastic w/ mesh grille (The whole front of the case is vented so my EVO212 pulls lots of fresh air from the front. Case also comes with one front hard drive fan as well!)

Cons: none

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  • ROBERT W.
  • 6/29/2014 3:02:24 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsExcellent case with one big drawback

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Spacious interior allows easy insertion of 8 drives. Front panel snaps off easily, leaving front-ports connected to case frame. (This front-port mounting is secured with two easy-to-remove screws so that assembly can be replaced, upgraded or moved aside during assemblies. Very nice.)

The drives, once installed, also have a good amount of spacing between them for excellent airflow.

There is a small plastic cage for two SSDs that can fit onto the back side of the Drive Cage, plus a 3rd SSD mounting on the base of the case.

When I consider an 8-HDD case, this would be one of the best (ANTEC 302s, some FRACTALS and the CoolerMaster 430 are other good examples; almost as easy for routine maintenance as large rackmount cases).

For multiple drives and spaciousness, this case could earn 5 stars.

I could claim this is a 5-star example

Cons: But here's the big error. The motherboard is recessed down into the motherboard tray. This means that the lower layer of SATA connectors on 'pedestal' type motherboards can't be easily accessed, cables inserted OR moved OR replaced. It also means that if the assembly wishes to press down to insert power-connectors, fingers cannot be fit under the motherboard's edge to equalize pressure.

This is a horrible design of the motherboard tray. If it was lifted upward OR left completely flat, all of these abilities would be available - as they usually are. But this 'sunken motherboard tray notion is TERRIBLE.

Any time the SysAdmins have to do work on one of these cases, they will have trouble with the sunken motherboard.

This earns a very low 1-star rating.

Other Thoughts: For the good points, this case gets my 5-star rating. For it's very VERY bad point, it earns the lowest possible.

So '3-star' is the average. If I'm looking for a case for a lot of HDDs, this case gets considerations. But connecting those drives to the motherboard all-but-requires upright, single SATA connectors - not the dual-layer SATA pedestals.

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  • Charles J.
  • 6/4/2014 2:10:47 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsBest case for the money, period

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: This case weighs almost nothing, but it's very strong and rigid. I don't know whether it's made from a cold-rolled, coated steel, or something else, but I've never seen a non-aluminum case that has this weight-to-strength ratio.

The case is great-looking; it has a matte black finish with attractive honeycomb-style vents that are forged into the actual case (they are not tacked-on plastic vents).

The front bezel is plastic, but it still looks sharp and is easy to remove.

Water-cooling capabilities; a radiator can be mounted on this case.

Removable screen filters in three separate locations, making it easy to remove accumulated dust from the case.

The case features white LED lights (for power and hard disk activity), which is pretty unique; I've never seen white LEDs in a case before.

The assembly is completely tool-less, which is great. The only minor exception is that a screw-driver is required to mount the motherboard to the case.

Speaking of screwdrivers, this is another simple feature that really sets CoolerMaster apart: the case hardware bag includes a Phillips-to-hex adapter, so an adjustable wrench or socket set is unnecessary when installing the brass offsets on which the motherboard is mounted. Good thing, too, because all I had was a screwdriver at the time of assembly! CoolerMaster saved me a trip home from the office.

Finally, CoolerMaster had the good sense to include *three* solid-state drive (SSD) bays in this case. So, if you are considering a SSD and were planning to buy a 3.5" to 2.5" enclosure/adapter for your SSD, it's not necessary with this case (unless you plan to buy more than three SSDs).

Very happy with this purchase; I looked long and hard for a case under $100 that meets all my needs and this is the sole contender.

Cons: None.

Other Thoughts: I went into panic mode when I couldn't find any hardware with the case. Only after removing the front bezel did I realize that the hardware was indeed present! The bag was tucked up in the front of the case and was easy to miss upon initial inspection.

So, if you can't find the hardware that should be included with the case, dig-around *inside the case* (not in the box) and look for two small bags of hardware. The screws are all black, which is a nice touch, because they match the black finish on the case.

1 out of 1 people found this review helpful. Did you? Yes No

  • Stephen H.
  • 6/2/2014 3:40:01 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGood case

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Plenty of ventilation. The two fans that came in the case are quiet. Connectors are labeled properly, with no quality issues. The case front isn't overdone, which is good for business offices. The interior is finished and includes tool-free drive bays, along with a snap-in holder for an SSD.

Cons: None.

Other Thoughts: One of the nicest cases I've worked with.

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  • Richard T.
  • 5/28/2014 9:48:49 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBeware of $10 rebate card

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Love the case - I would not purchase the case if you're taking the $10 rebate into consideration... Aside from the card I think the case is of great value and quality regardless of the rebate.

Cons: Beware of $10 rebate card - I tried to use this card at three different locations and it was rejected... It shows that there is a balance of $10.00 dollars but it refuses to process. Failed to work at Wal-Mart, Grocery Store, AAFES BX (Military Base Exchange)

Other Thoughts: None

Did you find this review helpful? Yes No

3 out of 5 eggsCan do better for the price

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Reasonable size for a large mid-tower, stylish and unobtrusive. Mix of USB 2.0 and 3.0 ports on the front panel is handy.

Cons: Poor at accommodating 2.5 inch drives and large GPUs. The caddy for 2.5 inch drives is poorly located and does not hold drives of ordinary size securely. It does not provide for screw mounting. Large GPUs will interfere with 3.5 inch drive slots and with cabling. Use of breakaway tabs for expansion slots and external cooler fittings is inexcusable even at this price.

Other Thoughts: Works well if you don't plan to install a large GPU and you get a 2.5-inch to 3.5-inch adapter for 2.5 inch drives. But you can do better in the same price range. Corsair 200R has none of these limitations.

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  • Anonymous
  • 5/20/2014 12:36:21 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNeat, simple case.

This review is from: Cooler Master N400 - Mid Tower Computer Case with ATX Motherboard Support, Multiple 240mm Radiator Support, and Ventilated Front Panel

Pros: Price was right for what I needed.
4 usb on front.
Perfect for an office PC.

Cons: Have no problems with it.

Did you find this review helpful? Yes No

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Item#: N82E16811119277
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