SFF time
P-ATX V4
The smallest ATX case — now built for even larger GPUs.
SFF time P-ATX V4 is an ultra-compact 11L small-form-factor case designed to fit a full-size ATX motherboard, SFX/SFX-L power supply, and a full-length 2.5-slot GPU.
With a mini-ITX motherboard, P-ATX V4 can support up to a 3.8-slot GPU, making it ready for some of the largest modern AIB graphics cards while keeping the clean, slim, console-style footprint that defines the P-ATX series.
What’s new in P-ATX V4
P-ATX V4 takes the proven P-ATX layout and refines it for modern high-end hardware. Compared to the previous V3 version, the internal design has been further optimized to support larger GPUs, improve durability, and make the build process easier.
Larger GPU support:
P-ATX V4 supports full-length 2.5-slot graphics cards with ATX, micro-ATX, and mini-DTX motherboards. With a mini-ITX motherboard, it can support up to a 3.8-slot GPU.
Easier build experience:
The updated layout gives builders more flexibility, with rear motherboard access for cooler and M.2 installation, multiple riser cable options, and improved component compatibility.
More durable construction
P-ATX V4 introduces more durable steel threads while keeping the premium powder-coated aluminum/steel construction.
Quick-remove stand
The included tool-free quick-remove stand makes it easier to switch layouts and enables a hassle-free inverted setup.
Plastic-free packaging
P-ATX V4 still ships flat-packed in plastic-free packaging.
Key features
Full-size hardware in an
11L case
Ready for high-end GPUs
Premium construction
P-ATX V4 is designed for builders who want serious hardware compatibility without moving to a large tower case. It supports mini-ITX, mini-DTX, micro-ATX, and full-size ATX motherboards in a compact 11L chassis.
The optimized internal layout supports full-length 2.5-slot GPUs with ATX-class motherboards, or up to 3.8-slot GPUs when using a mini-ITX motherboard.
A clean front panel, no visible seams, powder-coated finish, and aluminum/steel construction give P-ATX V4 a minimal, durable, premium look.
Flexible orientation
The included quick-remove stand gives the case a narrow 115 mm footprint and supports an inverted layout option.
Slim console-style layout
The case uses a console / “pizza box” style layout, with CPU and GPU fans facing the same direction for a clean, space-efficient build.
Specifications
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11L volume
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Outer dimensions: 376.5 × 352.5 × 83.5 mm, without stand
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Console / “pizza box” style layout, with CPU and GPU fans facing the same direction
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Motherboard support: mini-ITX, mini-DTX, micro-ATX, and ATX
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Power supply support: SFX and SFX-L power supplies up to 140 mm long
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GPU layout: vertically mounted GPU with multiple riser cable options
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GPU support: full-length 2.5-slot graphics cards
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Expanded GPU support: up to 3.8-slot graphics cards when using a mini-ITX motherboard
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Cooling support: one 120 mm case fan or 120 mm radiator
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CPU cooler clearance: up to 63 mm
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Storage support: one 3.5" drive and up to eight 2.5" drives
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Rear motherboard access for CPU cooler and M.2 installation
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Front I/O: USB-C Gen 3.2 port
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Construction: sturdy powder-coated aluminum/steel
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Stand: included tool-free quick-remove stand
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Footprint with stand: 115 mm wide
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Layout options: standard or inverted layout
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Weight: 1.7 kg
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Packaging: flat-packed in plastic-free packaging
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Assembly: some assembly required
Compatibility
GPU COMPATIBILITY GUIDE:
1. Width:
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a) default - max 3.8 slot (76mm)
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b) with ATX, m-ATX or m-DTX board - max 2.5 slot (~52mm)
2. Length:
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a) default - 360 mm
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b) with 120 mm AIO - 245 mm
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c) if 3.5” or 2.5” storage drives are being used max GPU length will depend on GPU’s width and number of drives installed, please see “HARD DRIVES COMPATIBILITY” section
3. Height:
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a) default - 150 mm
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b) for 2.2 slot or wider GPU with mATX or ATX motherboard with PCIe slot in 2nd position – 130mm
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c) for 2.2 slot or wider GPU with mATX or ATX motherboard with PCIe slot in 3rd position – 110mm
Notes: dimensions do not include the PCI bracket
