Cooler Master COSMOS SE Full Tower Desktop Case (Midnight Black, Windowed Version)

Cooler Master COSMOS SE Full Tower Desktop Case (Midnight Black, Windowed Version)

Cooler Master COSMOS SE Full Tower Desktop Case (Midnight Black, Windowed Version)

B&H # COS5000KWN1 MFR # COS-5000-KWN1
No Longer Available

Product Highlights

  • Steel Frame & Curved Aluminum Handles
  • 3 x 5.25" Drive Bays
  • 8 x 3.5" Drive Bays
  • 18 x 2.5" Drive Bays (16 from 3.5" Bays)
  • Support for Liquid Cooling Systems
  • Four Installed Cooling Fans
  • Supports GPUs up to 15.5" Long
  • Supports CPU Coolers up to 6.9" Tall
  • Large Cable Management Space
  • Mutliple Removable Dust Filters
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Cooler Master COS-5000-KWN1 overview

  • 1Description

The midnight black COSMOS SE Full Tower Desktop Case from Coolermaster features a classic supercar design with curved aluminum handles. Behind the mesh front panel are two 120 mm blue LED fans with a LED on/off function. Since liquid cooling is essential for high-end components, the COSMOS SE can support up to three radiators at once in the 120/280/360 mm configuration (rear/top/front). The COSMOS SE supports ATX, microATX, and Mini-ITX motherboards as well as storage expansion of up to 8 hard disk drives or 18 solid state drives. The COSMOS SE also features a windowed side panel so you can view all your components in action.


  • A removable top cover with dust filter
  • Dual USB 3.0 ports located at the top of the case
  • 3.5 mm headphone and microphone jacks located at the top of the case
  • On/off controls for the LEDs of the front fans located at the top of the case
  • Supports high-end GPUs that are up to 15.5" long
  • Supports up to 8 HDDs
  • Large cable management space
  • Large slide-out dust filter for easy maintenance
  • Windowed side panel so you see your computer in action


  • Supports 240/280 mm radiators at the top
  • One top 140 mm fan & one 120 mm rear fan included
  • Supports 120 mm radiators in the rear
  • Supports 360 mm radiators in the front (optional)
  • Two 120 mm blue LED fans included for high airflow

Liquid Cooling Compatibility List

  • Coolermaster Nepton 280L (top, front)
  • Coolermaster Nepton 140XL (top, front)
  • Coolermaster Seidon 240M (top, front)
  • Coolermaster Seidon 120V (top, front, rear)
  • Coolermaster Seidon 120M (top, front, rear)
  • Coolermaster Seidon 120XL (top front, rear)
  • Coolermaster Eisberg 240L Prestige (top, front)
  • Coolermaster Eisberg 120L Prestige (top, front, rear)
In the Box
Cooler Master COSMOS SE Full Tower Desktop Case (Midnight Black, Windowed Version)
  • 2-Year Limited Warranty
  • Table of Contents
    • 1Description

    Cooler Master COS-5000-KWN1 specs

    Materials Polymer
    Mesh front bezel
    Motherboard Form Factor ATX
    Drive Bays 2 x 5.25" (external)
    8 x 3.5" (internal)
    18 x 2.5" (16 converted from 3.5" bays)
    I/O Connectors 2 x USB 3.0
    2 x USB 2.0
    1 x Headphone-out
    1 x Microphone-in
    Expansion Slots 7
    Cooling System Top
    2 x 120/140 mm fan (one 140 mm black fan installed, 1200 rpm, 19 dBA)
    2 x 120 mm blue LED fan (installed; with LED on/off)
    1 x 140 mm fan (optional)
    1 x 120 mm fan (installed, 1200 rpm, 17 dBA)
    HDD Cage
    2 x 120 mm fan (optional)
    Power Supply Type Standard ATX PS2
    Maximum Compatibility GPU Card Length
    With HDD Bracket: 10.9" / 27. 6 cm
    Without HDD Bracket: 15.5" / 39.5 cm
    CPU Cooler Height
    6.9" / 17.5 cm
    Dimensions 10.40 x 22.40 x 20.60" / 26.38 x 56.94 x 52.44 cm
    Weight 23.8 lbs / 10.8 kg
    Packaging Info
    Package Weight 28.9 lb
    Box Dimensions (LxWxH) 24.0 x 23.0 x 12.0"

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