Cooler Master N400 Mid ATX Chassis with Side Window - NSE-400-KWN2

Model NSE-400-KWN2

Polymer, mesh front bezel

M/B Type

microATX, ATX

Drive Bays

5.25" Drive Bays

2 (Exposed)


3.5" Drive Bays

1 (Exposed), 7 (Hidden)


2.5" Drive Bays

3 (Hidden)

I/O Panel

USB 3.0 x 2 (int.), USB 2.0 x 2, Mic x 1, Audio x 1 (supports AC97 / HD Audio)

Expansion Slots


Cooling System Top: 120mm fan x 2 (optional)
Front: 120mm fan x 2 (one white LED XtraFlo fan installed, one optional) - for KKN1/KWN1; with no PWM / LEDXtraFlo - for KKN2/KWN2
Rear: 120mm XtraFlo fan (no PWM / LED) x 1 (installed)
*The bundled XtraFlo fans: 3-pin
Left Side: 120/140mm fan x 1 (optional) - for KKN1 / KKN2 only
Right Side: 120mm fan x 2 (optional)
Power Supply Type Standard ATX PS2
Maximum Compatibility VGA card length: 320mm / 12.6 inch
CPU cooler height: 164mm / 6.4 inch
Dimension 19 x 42.6 x 50.14 cm (L x W x H)
Weight  Starting from 5.6kg


Production Description




Product Details

Short Specification

Full mesh on the front panel

- Supports a 240mm liquid cooling radiator or two 120mm fans on the right side / at the top

- Supports a 120mm liquid cooling radiator in the rear

- Supports up to 3 SSDs – 2 on the tool-less 2.5” cage, 1 at the bottom of HDD cage

- Includes two XtraFlo 120 fans (3-pin) – one white LED XtraFlo (LED can be disabled) in the front and one (no LED) in the rear for optimum airflow - support for up to 8 fans

- One optional 120/140mm fan can be installed on the left side panel to cool the graphics cards

- Supports high-end graphics cards up to 320mm / 12.6 inch, including NVIDIA GTX 690 & AMD HD 7990

- Dual Super Speed USB 3.0

- 3 dust filters (top, right side, bottom) for easy maintenance

What's in the box
  • 1 x Cooler Master N400 Mid ATX Chassis with Side Window - NSE-400-KWN2
Box Dimensions(CM) & Weight
  • 19 x 42.6 x 50.14 cm
  • 6.5 kg

T & C


Thanks for shopping at our store

If you are not entirely satisfied with your purchase, or if you having problem with the items you received, we are here to help you solve it.

Return Policy

1. To be eligible for return, if the item received by customer was already damaged before it used by customer, received wrong item or malfunction item kindly return with original goods packaging and the return content must be complete without missing any single item as you received it.
2. You have 7 calendar days to request return any item from the date you received, if you having an issue above with the items you received.

3. Your item needs to have the receipt or proof of purchase. Strictly non-returnable if the goods received by customer are not satisfied after the goods have been used.

Refund Policy

Strictly non-refundable, can only do replacement with same item or other product with same or higher value. If same product runs out, other product with same or higher value will be replaced and buyer

shall pay the difference.


"Refund will not be paid if the goods received from customers are not in good condition or the goods have been used."


Replaceable, will be no charge for replacement item shipping fees, if merchant issue wrong item color, wrong size or wrong product. Please contact the merchant immediately with 24 hours after received the goods by snapping some photos to report all the damage goods at the same time. Any compliant exceed the said 48 hours (time will base on the sign as received from the consignment or courier noted) replacement, arrangement or process will be taken.

Warranty Policy

After Sale Service Aone Plus policy is in accordance with the terms and conditions of its respective suppliers. Aone Plus will provide 1st year warranty service for delivery to (and from) the manufacturer’s Service Centre.


All products with warranty period over one year can be sent by Aone Plus to (and from) the manufacturer’s Service Centre at the customer’s expense after 1st year from date of purchase. All courier charges for sending and returning product for exchange or warranty purposes from customer will be borne by customer except if we send the wrong or defective product to you.


In the event if the defective items are sent in after 1st year of warranty period, sending back the repaired item to customer will be at customer's expense. However, customer in Klang Valley can also walk-in to any of our outlets to request for exchange or warranty services. By visiting our outlets direct, it will be faster and easier as our technicians can test the product on the spot.

Aoneplus Main Office:

Setia Alam, Setia Avenue @ +603 3359 7355

Email support :
Toll Free Number : 03-3359 7355/ +6012 417 7741
Whats App : 016-3351589 (IT Product)


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RM 215.00
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Shipment and Delivery: Next Business Day
Ship To: Refer to T&C
Brand: Cooler Master
Order Quantity
In Stock