Lian Li black (G99.A4H2OX5.00)

Name: Lian Li black G99.A4H2OX5.00
Brand: Lian Li

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Scan.co.uk →	£129.98		Overclockers.co.uk →	£129.95
Pcnova.co.uk →	£132.16		Gamingkit.co.uk →	£132.16

Lian Li black

black silver

2023no fans USB-C

Chassis Form Factor:Desktop

Motherboard size:mini-ITX

PSU power:no PSU

Internal bays 2.5":1

Front panel:USB-A 1 pcs, USB-C 1 pcs

Model A4-H20 X3 complete with PCIe Gen.3. Model A4-H20 X4 complete with PCIe Gen.4.

A4-H2O includes a PCIe Gen.3 or PCIe Gen. 4 to vertically mount the GPU and place it behind the motherboard.

This case can combine ultra-compact chassis dimensions and the highest performance of computer assembly. This is a Mini Tower case designed to mount a Mini-ITX motherboard. With dimensions of 244x140x326 mm, the platform allows you to mount a 240 mm water cooling radiator. The main feature of the model is the installation of a video card behind the motherboard tray. This is done on purpose so as not to limit the length of the graphics adapter.

The Lian Li A4 H20 computer case allows you to effortlessly mount a powerful 3-slot video card up to 322 mm long. A standard riser is provided for vertical installation of the GPU. This platform can be supplied with both PCIe Gen.4 and PCIe Gen.3 adapters, depending on the modification. 55 mm remains for CPU cooling. When installing a high-performance CPU, it is recommended to use a water block. The body is clad in front with a striking aluminium panel. On the tuning unit, you can find USB 3.2 gen1 connectors in both Type A and Type C form factors. The power supply mounting compartment is designed for SFX and SFX-L PSUs. From memory drives, you can use 1 2.5″ device, as well as an eMMC board.

All specifications

Specifications A4-H20 Black

Colour

Form factor	Desktop
Mount	vertical
Motherboard support	mini-ITX
Board placement	vertical
PSU form factor	SFX


Computer case
Dimensions (HxWxD)	244x140x326 mm
Graphics card max lenght	322 mm
Fan max height	55 mm
Material	steel
Side panel	removable


Storage
PSU
PSU mount	bottom
internal 2.5" compartments	1
Expansion slots	3
Graphics card vertical mount

Cooling
Fans (top)	2x120mm
Fan mounts total	2
Liquid cooling system support


Liquid cooling system
Liquid cooling (top)	240mm
Liquid cooling mounts	1


Connectors and functions
Placement	on the side wall
USB-A 5Gbps	1 pcs
USB-C 5Gbps	1 pcs
Audio (microphone/headphones)


More features
Front panel	solid
Official Website	lian-li.com
Added to E-Catalog	May 2023
P/N	G99.A4H2OX5.00

E-Catalog UK editor, Computer Cases

Valerii Lenko, edited 02.09.2025

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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	Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Ca Scan.co.uk Delivery: to United Kingdom Report		£129.98 Buy in shop

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