The Jonsbo X400 combines a striking design with maximum cooling performance – ideal for high-end setups with modern back-connect motherboards. The blend of steel, tempered glass, and technical ABS creates a robust case with showroom appeal.
- Supports ATX, M-ATX, and ITX – including back-connect layouts
- Up to 13 fans: 3 top, 3 side, 2 rear, 2 back, 3 bottom
- Dual radiator support up to 360 mm – e.g. for AiO & custom loops
- GPU up to 427 mm, CPU cooler up to 176 mm – maximum hardware freedom
- USB-C (Gen 2) + 2x USB-A and audio/mic on the front panel
Maximum space for high-end hardware
The X400 offers uncompromising room for large GPUs, tall air coolers, and power supplies up to 180 mm. Perfectly suited for builds with powerful hardware and modern cable management via back-connect motherboards.
Massive cooling capacities
With up to 13 fans, the case provides an enormous airflow base. Additionally, two radiators up to 360 mm can be installed – ideal for push/pull configurations or dual AiO setups.
Elegant design meets technology
Reinforced ABS frame, tempered glass, and a functional I/O panel make the X400 an eye-catcher with thoughtful features. Thanks to USB-C, you’re well equipped for modern peripherals.
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Colour
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Primary Colour
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White
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Dimensions
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Length / Depth
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460.2 mm
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Width
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310.3 mm
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Height
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476.5 mm
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Weight
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10.2 kg
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Case
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Case Type
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Mid Tower
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Motherboard Support
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Compatible Motherboard Formats
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ATX, Micro-ATX, Mini-ITX
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Max. Motherboard Format
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ATX
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Internal Dimensions
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Max. CPU Cooler Height
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176 mm
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Max. GPU Length
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427 mm
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Max. PSU Length / Depth
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180 mm
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Display
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Display Included
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No
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Power Supply
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PSU included
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No
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PSU Format
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ATX
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Power Supply Position
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rear side
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Cable Specifications
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Riser Cable Included
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No
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Fan Support
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Case Fan Support (Bottom)
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120mm Fan (3x)
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Case Fan Support (Rear)
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120mm Fan (2x)
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Case Fan Support (Side)
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120mm Fan (3x)
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Case Fan Support (Top)
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120mm Fan (3x), 140mm Fan (2x)
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Max. Number of Fans
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13
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120 mm fans
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13
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140 mm fans
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2
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Radiator Support
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Max. Radiator Compatibility
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2x Triple (360 mm)
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Radiator/AIO Support (Side)
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360mm Radiator
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Radiator/AIO Support (Top)
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240mm Radiator, 280mm Radiator, 360mm Radiator
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Drive Bays
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Max. 2.5 Inch Drives
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1
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Max. 3.5 Inch Drives
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2
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Max. 5.25 Inch Drives
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0
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Hot swap drive bays
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No
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External Ports
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Front I/O – USB Type C Ports Total
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1
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Front I/O – USB Type A Ports Total
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2
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Audio outputs & inputs
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1x output + 1x input (3.5 mm jack, 3-pin, TRS)
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Case Features
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I/O position
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Front
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Side panel
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with window
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Vertical GPU Mount
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No
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Adjustable Vertical GPU Bracket
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No
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Front door
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No
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Cable Management
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Yes
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Filters Included
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Yes
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Noise dampening
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No
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Mainboard slide / tray
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No
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Transport System
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No
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Back Connect
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Back Connect
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Yes
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Expansion Slots
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Expansion slots / PCI slots
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7
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Features
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Housing Feedthrough
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No
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Compatibility
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Compatibility Note
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Please refer to the manufacturer's compatibility information. You can find the latest overview on the manufacturer's website.
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Connectivity
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Card reader
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No
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Fan Header
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Fan Controller / Fan Hub
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No
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Mounting
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Case VESA Mountable
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No
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Internal Monitor Mount
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No
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Materials
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Materials
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ABS, SPCC (steel), Tempered Glass
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Lighting
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Lighting / RGB
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No
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Additional Contents
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Fans Included
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No
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Included fans
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None
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Product reviews displayed are aggregated from all Pro Gamers Group websites.
| Compliance Documents | |
| Manufacturer Information | Caseking GmbH Gaußstraße 1, 10589 Berlin, Germany [email protected] |
| Responsible Person | Caseking GmbH Gaußstraße 1, 10589 Berlin, Germany [email protected] |