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Compact black 11-liter Mini-ITX case with aluminum exterior, sandwich layout, triple-slot GPU support and top 240 mm radiator mount

Lian Li

Lian Li A4-H2OX5 Mini-ITX PC case 11L 240mm AIO triple-slot GPU black

SKU CH-SGM9-R5ZHW MPN A4-H2OX5

An 11-litre Mini-ITX case that fits a triple-slot GPU up to 322 mm and a 240 mm radiator, with a PCIe 5.0 riser cable and removable bottom dust tray

  • Max graphics card length322 mm
  • Supported motherboard sizesMini-ITX
  • Dust filteringRemovable bottom dust tray x 1
  • Front panel portsPower Button x1 USB 3.1 Type C x1 Mic x1 HD Audio x1 USB 3.0
  • Fan mounting optionsTop: 120 mm x 2
  • Radiator supportTop: 240 mm (55 mm max total thickness with fans)

Color Black

  • 11-litre volume fits triple-slot GPU and 240 mm AIO
  • Sandwich layout places GPU behind motherboard on PCIe 5.0 riser
  • Removable bottom dust tray simplifies cleaning
  • Aluminium exterior with ventilation on most sides
  • Front USB 3.1 Type-C, USB 3.0 Type-A, mic and audio ports

Compact 11-Litre Mini-ITX Chassis

The Lian Li A4-H2OX5 is an 11-litre small form factor case built around a Mini-ITX motherboard and a sandwich layout. It accommodates a triple-slot graphics card up to 322 mm long and includes a PCIe 5.0 riser cable to mount the GPU behind the board. A 240 mm radiator fits in the top panel with a maximum 55 mm total thickness including fans. The aluminium exterior and removable bottom dust tray complete the package.

Verify Motherboard Layout and Power Supply Fit

Confirm your Mini-ITX board places the CPU socket within the 55 mm cooler height limit and that the PCIe slot aligns with the supplied riser cable. The case accepts only SFX or SFX-L power supplies, so an ATX unit will not fit. Ensure the graphics card does not exceed the 322 mm length allowance and that its slot thickness matches the triple-slot mounting design. Front-panel connectivity provides USB 3.1 Type-C, USB 3.0 Type-A, HD audio and a microphone jack.

Top 240 mm Radiator Handles Sustained Heat Loads

Mounting a 240 mm AIO in the top position with two 120 mm fans gives the system a direct exhaust path for CPU heat during extended sessions. The 55 mm combined thickness limit keeps the radiator-and-fan stack slim enough to maintain airflow without recirculation. Aluminium side panels add passive surface area while the sandwich layout separates the GPU chamber from the motherboard, letting each component draw fresh air independently over long periods.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $115.99
Pricier than about 58% of the 1,468 comparable items (median $100.99).
Max graphics card length 322 mm
Lower than about 88% of the 894 comparable items (median 400 mm).

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Specifications

Product
Product lineA4
Model nameA4-H2OX5
Product typeMini-ITX
Product colorBlack
Ports & slots
Front panel portsPower Button x1
USB 3.1 Type C x1
Mic x1
HD Audio x1
USB 3.0 Type A x1
Size & build
Max graphics card length322 mm
Dust filteringRemovable bottom dust tray x 1
Fan mounting optionsTop: 120 mm x 2
Shipping weight3.45 kg
Package size387 × 305 × 193 mm
Compatibility
Supported motherboard sizesMini-ITX
Radiator supportTop: 240 mm (55 mm max total thickness with fans)
CPU cooler height limit55 mm

Other versions of this model

1 more in the same range

Questions about this item

Does the A4-H2OX5 include the PCIe 5.0 riser cable or must I buy it separately?

The PCIe 5.0 riser cable is included in the box with the A4-H2OX5.

Which GPU thickness does the triple-slot mount support?

The sandwich layout supports a triple-slot graphics card up to 322 mm long.

What does the 240 mm radiator limit mean for my CPU cooling choice?

You can install a 240 mm AIO in the top with up to 55 mm total thickness including fans.

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