A4-H2O
The A4-H2O is an 11-liter small form factor case, a collaboration project with DAN Cases. Based on the original DAN A4-SFX case sandwich layout concept, the A4-H2O continues the minimalist and compact form factor with improved hardware compatibility (including AIO water cooling) and simplifies installation.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o-00.png)
A4-H20
A TRIBUTE TO SFF
The A4-H2O is an 11-liter small form factor case, a collaboration project with DAN Cases. Based on the original DAN A4-SFX case sandwich layout concept, the A4-H2O continues the minimalist and compact form factor with improved hardware compatibility (including AIO water cooling) and simplifies installation.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o-00.png)
A4-H20
A TRIBUTE TO SFF
The A4-H2O is an 11-liter small form factor case, a collaboration project with DAN Cases. Based on the original DAN A4-SFX case sandwich layout concept, the A4-H2O continues the minimalist and compact form factor with improved hardware compatibility (including AIO water cooling) and simplifies installation.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_m_1.jpg)
A4-H20
A TRIBUTE TO SFF
The A4-H2O is an 11-liter small form factor case, a collaboration project with DAN Cases. Based on the original DAN A4-SFX case sandwich layout concept, the A4-H2O continues the minimalist and compact form factor with improved hardware compatibility (including AIO water cooling) and simplifies installation.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-00.jpg)
11-Liter SFX
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-01.jpg)
MINIMALIST
DESIGN
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-02.jpg)
SANDWICH
LAYOUT
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-03.jpg)
240 AIO
COMPATIBLE
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-04.jpg)
SFX, SFX-L
COMPATIBLE
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-05.jpg)
REMOVABLE
BOTTOM PANEL
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-06.jpg)
TRIPLE SLOT
GPU
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_icon-07.jpg)
PCIE 3.0 or 4.0
11-Liter Form Factor
At only 11 liters, the A4-H2O is one of the smallest cases on the market that supports triple-slot GPU and clearance for 240 AIO water cooling.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_000-a.jpg)
SIZE COMPARISION
The A4-H20 is smaller in size than most consoles, and the minimalist design suits any living space or any entertainment center to enjoy games or movies.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_001.jpg)
A4-H20
(D) 326mm x (W) 140mm x (H) 244mm
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_002.jpg)
PlayStation 5
(D) 260mm x (W) 104mm x (H) 390mm
Minimalist Design –
Black or Silver
A minimalist design, the A4-H2O has premium aluminum exterior with ventilation from almost most sides. The A4-H2O is available in black or silver.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_003.jpg)
For
Living
Space
Minimalist black or silver design of the A4-H20 feels right at home in any living space. The small 11-liter volume is small enough to feel like it’s not even there.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_00.jpg)
For
Desktop
Small footprint of the A4-H20 fits on any desktop without taking up too much space for you to keep your space clean and spacious to game or work.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_01.jpg)
Sandwich Layout Design
The sandwich layout allows for a triple-slot GPU to fit into the compact size case. Matched with a PCIe Gen. 3 or Gen. 4 riser cable, the GPU is located behind the motherboard and leaves room for a 240mm radiator at the top of the case. Bottom, side, and top mesh panels ensure that the components get cooled directly with fresh air intake.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_006.jpg)
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_007.jpg)
Easy AIO
Installation
A removable bracket at the top makes the installation of radiators up to 240mm in length much easier. The top compartment accommodates a fan radiator combo of up to 55mm in thickness.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_008.jpg)
Supports SFX,
SFX-L Power Supply
A removable mounting bracket is designed to support SFX and SFX-L power supplies. A power cord extension is also included and pre-routed to avoid interfering with other hardware.
Sandwich Layout Design
The sandwich layout allows for a triple-slot GPU to fit into the compact size case. Matched with a PCIe Gen. 3 or Gen. 4 riser cable, the GPU is located behind the motherboard and leaves room for a 240mm radiator at the top of the case. Bottom, side, and top mesh panels ensure that the components get cooled directly with fresh air intake.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_006.jpg)
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_007.jpg)
Easy AIO
Installation
A removable bracket at the top makes the installation of radiators up to 240mm in length much easier. The top compartment accommodates a fan radiator combo of up to 55mm in thickness.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_008.jpg)
Supports SFX,
SFX-L Power Supply
A removable mounting bracket is designed to support SFX and SFX-L power supplies. A power cord extension is also included and pre-routed to avoid interfering with other hardware.
Fully Removable Panels
Front, side, top and bottom panels can all be removed easily to provide easier access for installation and/or cable management.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_009.jpg)
Well
Ventilated
Aside from the front panel, the top, sides and back of the A4-H2O are well ventilated with fine mesh which allows fresh air intake to enter the case.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_02.jpg)
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_012.jpg)
PCIe-3.0
and PCIe 4.0
The A4-H2O includes a PCIe Gen.3 or PCIe Gen. 4 riser cable, to vertically mount the GPU and place it behind the motherboard. The PCIe 4.0 riser cable supports transfer rate of 16GT/s (double the speed of PCIe 3.0). PCIe Gen.4 riser cables are backwards compatible with PCIe Gen 3.
PCIe-3.0
and PCIe 4.0
The A4-H2O includes a PCIe Gen.3 or PCIe Gen. 4 riser cable, to vertically mount the GPU and place it behind the motherboard. The PCIe 4.0 riser cable supports transfer rate of 16GT/s (double the speed of PCIe 3.0). PCIe Gen.4 riser cables are backwards compatible with PCIe Gen 3.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_012.jpg)
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_013.jpg)
IO and Power
Located on the left side of the case inside a recessed cutout, the front IO includes a USB 3.1 Type-C (internal Key-A) port, a Mic port, an HD-Audio port, and a USB 3.0 Type-A port (internal 19pin). At the top of the recess is a premium-grade power button.
IO and Power
Located on the left side of the case inside a recessed cutout, the front IO includes a USB 3.1 Type-C (internal Key-A) port, a Mic port, an HD-Audio port, and a USB 3.0 Type-A port (internal 19pin). At the top of the recess is a premium-grade power button.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_013.jpg)
Triple-slot GPU Compatible
Removing the front panel provides a wide opening at the front to insert larger graphics card into the case with ease. The spacious interior supports a triple-slot graphics card of up to 322mm.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_014.jpg)
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_017.gif)
Optimized airflow for 2 slots GPUs
The extra standoffs helps pushing a two slot GPU toward the side panel in order to exhaust or intake fresh air directly out of the chassis.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_017.gif)
Optimized airflow for 2 slots GPUs
The extra standoffs helps pushing a two slot GPU toward the side panel in order to exhaust or intake fresh air directly out of the chassis.
Removable Bottom Panel –
Cable Management & Storage
The removable bottom panel provides additional access to the inside of the case and makes for easier cable management. A 2.5” SSD drive can also be attached onto the bottom panel.
Removable Bottom Panel –
Cable Management & Storage
The removable bottom panel provides additional access to the inside of the case and makes for easier cable management. A 2.5” SSD drive can also be attached onto the bottom panel.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_010.jpg)
A Dan Cases
Collaboration
The A4-H2O, is an update to the popular DAN A4-SFX case with added water cooling support. This is a special collaboration with Daniel Hansen from Dan Cases. The A4-H2O is manufactured and sold by LIAN LI.
![](https://lian-li.com/wp-content/uploads/2022/02/a4h2o_016.png)
![](https://lian-li.com/wp-content/uploads/2022/02/geforce-sff-ready-case-nv-gf-module-1350-l-layout.jpg)
![](https://lian-li.com/wp-content/uploads/2022/02/geforce-sff-ready-case-nv-gf-module-1024-t-layout.jpg)
![](https://lian-li.com/wp-content/uploads/2022/02/geforce-sff-ready-case-nv-gf-module-640-p-layout-1.jpg)
SPECIFICATIONS
MODEL NAME | A4-H2O | |||
---|---|---|---|---|
MODEL NO. | A4-H20 X3 BLACK | A4-H20 X4 BLACK | A4-H20 A3 SILVER | A4-H20 A4 SILVER |
COLOR | Anodized Black Exterior Matte Black Interior | Silver Exterior Matte Black Interior | ||
RISER CABLE GENERATION | PCIe 3.0 | PCIe 4.0 | PCIe 3.0 | PCIe 4.0 |
DIMENSION | (D) 326mm x (W) 140mm x (H) 244mm | |||
CAPACITY | 11L | |||
MATERIALS | Aluminum Exterior SPCC Steel Interior | |||
MOTHERBOARD SUPPORT | Mini-ITX | |||
FAN SUPPORT | Top:2x 120mm | |||
RADIATOR SUPPORT | Top:1x 240mm (55mm. max total thickness with fans) | |||
PSU SUPPORT | SFX, SFX-L | |||
GPU LENGTH CLEARANCE | Max 322mm | |||
CPU COOLER CLEARANCE | Max 55mm | |||
DRIVE Support | 1x 2.5” SSD | |||
EXPANSION SLOT | 3 | |||
I/O PORTS | 1x USB 3.0 TYPE-A, 1x USB 3.1 TYPE-C, 1x Mic, 1x HD Audio. | |||
WARRANTY | 1 year |
SPECIFICATIONS
PRODUCT NAME | |||
---|---|---|---|
A4-H2O | |||
MODEL | |||
A4-H20 X3 | A4-H20 X4 | A4-H20 A3 | A4-H20 A4 |
COLOR | |||
Anodized Black Exterior Matte Black Interior | Silver Exterior Matte Black Interior | ||
RISER CABLE GENERATION | |||
PCIe 3.0 | PCIe 4.0 | PCIe 3.0 | PCIe 4.0 |
DIMENSION | |||
(D) 326mm x (W) 140mm x (H) 244mm | |||
CAPACITY | |||
11L | |||
MATERIALS | |||
Aluminum Exterior SPCC Steel Interior | |||
MOTHERBOARD SUPPORT | |||
Mini-ITX | |||
FAN SUPPORT | |||
Top:2x 120mm | |||
RADIATOR SUPPORT | |||
Top:1x 240mm (55mm. max total thickness with fans) | |||
PSU SUPPORT | |||
SFX, SFX-L | |||
GPU LENGTH CLEARANCE | |||
Max 322mm | |||
CPU COOLER CLEARANCE | |||
Max 55mm | |||
DRIVE Support | |||
1x 2.5” SSD | |||
EXPANSION SLOT | |||
3 | |||
I/O PORTS | |||
1x USB 3.0 TYPE-A, 1x USB 3.1 TYPE-C, 1x Mic, 1x HD Audio. | |||
WARRANTY | |||
1 year |