Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser
Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser
Scan code: LN167382 Manufacturer code: A4H2OX5
£129.98Item due on 30 August 2026
Due 30th Aug
  • Thumbnail 1 : Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser
  • Thumbnail 2 : Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser
  • Thumbnail 3 : Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser
  • Thumbnail 4 : Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser

Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser

Lian Li A4-H2O X5, Black, mini ITX Small Form Factor Chassis, Mesh Panelling, USB3.0, USB3.1 Type-C, PCIe 5.0 Riser

Scan code: LN167382 Manufacturer code: A4H2OX5
£129.98
Item due on 30 August 2026
Due 30th Aug
Pay in 3 interest-free payments of £43.33

Email me when the availability or price changes

  • By DPD Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window | £11.50 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout
  • Collect instore Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE) | Free
  • UPS and DPD Pickup Pickup from local convenience store | £4.99 Collect your parcel from your newsagents, petrol stations and convenience stores

Finance this product

  • From £11.78 / month (APR 16.9%) for 12 months or 0% for 4 months
  • Spend over £390.00 and Buy Now, Pay Later or spread the cost of your finance over 24-48 months with a 10% deposit.
  • SCANPROTECT Protect against installation damage for 28 days.

Suggested Alternatives

DAN Case A4 H2O w/ PCIe 5.0 in Black from Lian Li

DAN Case A4 H20 in Black

A TRIBUTE TO SFF The A4-H2O is an 11-litre Mini-ITX case created in collaboration between Lian Li and DAN Cases. Building on the sandwich layout of the original DAN A4-SFX, it offers a compact design with enhanced hardware compatibility, including support for triple-slot GPUs and 240mm AIO water cooling solutions. Its modular design and removable bottom panel make installation straightforward, offering practicality for both cable management and component upgrades. With support for SFX and SFX-L PSUs, the A4-H2O delivers the versatility required for high-performance builds, all within a minimalist footprint tailored for modern desktops.

Minimalist Design

Sandwich Layout

240mm AIO Support

Triple Slot GPU Support

SFX/SFX-L PSU Compatible

In Collaboration with DAN Cases


The A4-H2O is the result of a collaboration between Lian Li and Dan Cases, bringing together the expertise of two renowned brands. Dan Cases is known for its innovative approach to compact, high-performance case design, where efficiency and simplicity are key. Their influence in the A4-H2O is evident in its refined modularity and space utilisation, offering a unique blend of precision and flexibility. This partnership is significant because it merges Lian Li’s reputation for exceptional build quality with Dan Cases’ minimalist, highly functional designs. The outcome is a case that doesn’t just look good—it optimises every inch, offering a new standard of performance in a compact form.

Small but Mighty

Image of the case with measurements around the sides showing the dimensions

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.

Image of the case next to a PS5 showing the size comparison

Size Comparison 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.

Wherever you Need it Most

Lifestyle image of the case in a living room setting

For Living SpacesMinimalist 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.

Lifestyle image of the case in a desktop setting

For Desktop SpacesSmall 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.

Sandwich Layout Design

Side view of case with a blue graphic showing where PSU, GPU and motherboard can be placed

The sandwich layout allows for a triple-slot GPU to fit into the compact size case. Matched with a PCIe 5.0 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. 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.

Side view of case with a blue graphic showing where radiator can be placed

Easy AIO InstallationA 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.

Side view of case with a blue graphic showing where PSU can be placed

Supports SFX, SFX-L Power SupplyA 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.

Convienient Build Features

Splash image of all the parts of the case floating beside each other

Fully Removable Panels Front, side, top and bottom panels can all be removed easily to provide easier access for installation and/or cable management.

Close up image of case vents

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.

Close up image of riser cable

PCIE 5.0 Riser Cable The A4-H2O includes a PCIe 5.0 riser cable, to vertically mount the GPU and place it behind the motherboard.This PCIe 5.0 riser cable supports up to 32 GT/s and is backward compatible with earlier PCIe generations.

Close up image of I/O ports

I/O 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.

Image of a GPU inside the case

Optimised 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.

Build Small, Play Big

SFF-Ready Visual for GeForce Cards

SFF-ReadyThis case is compatible with SFF-Ready Enthusiast GeForce cards, so you can pack high performance into a smaller footprint. Look for SFF-Ready Enthusiast GeForce cards to get a sure fit and streamline your PC build.

Specifications
Core Chassis Specifications
Case Edition A4-H20
Case Form Factor Mini-ITX
Motherboard Form Factor Mini-ITX
Back Connect Compatible No
I/O, Bays & Expansion
Front/Side/Top Panel I/O
  • 1 x HD Audio
  • 1 x Mic In
  • 1 x USB 3.0
  • 1 x USB 3.1 Type-C
Drive Bays 1 x 2.5" Internal
Standard Expansion Slots 3
Vertical Expansion Slots  
Fans & Filters
Fan Bays 2 x 120mm
Fans Included None
Fan Controller/Hub  
Dust Filters  
Liquid Cooling Support
Front Radiator Compatibility  
Top Radiator Compatibility 1 x 240mm
Bottom Radiator Compatibility  
Rear Radiator Compatibility  
Side Radiator Compatibility  
Clearances
Max CPU Cooler Height 55 mm
Max GPU Card Length 322 mm
Cable Routing Space  
Side Panels
Window/s No
Window Configuration  
Window Construction  
LED Lighting Functionality
LED Lighting No
LED Lighting Emitters  
LED Lighting Colour  
LED Lighting Support & Control  
Power Supply Compatibility
PSU Included No
PSU Wattage (If Included)  
PSU 80+ Rating (If Included)  
PSU Support SFX / SFX-L
PSU Mounting Location  
Max PSU Length  
Chassis Physical Specifications
Colour Black
Chassis Construction Materials SPCC / Aluminium
Front Panel Type N/A
Dimensions 140 x 244 x 326 (WxHxD mm)
Weight  
Package Type  
Please Note  
Additional Information
Scan Code LN167382
Model Number A4H2OX5
GTIN 4718466022691
Warranty

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

Details
Duration:
24 months
Type:
Return to base
DOA Period:
28 days
RTB Period:
24 months
Manufacturer Contact Details
Manufacturer:
Lancool
Telephone:
[email protected]
Loading Please Wait

Please wait . . .

Buying Guide
Not sure which case is right for you? Read our Case Buying Guide
Computer Cases
Computer Cases
Date Issued: 6th Jul 2011

There's more choice than ever before, but which computer case is right for you and which features should you look out for?

Read More

Chassis Airflow
Chassis Airflow
Date Issued: 20th Oct 2008

The modern PC is potentially a mass of heat output and heat production hot spots. With CPUs rated at more than 100W of heat output, single graphics boards carrying similar ratings (and people want to run two!), multiple hard drives the norm, lots of memory and mainboards covered in heatpipes to combat toasty core logic and PWM circuits, a PC appreciably warming up a room when it’s working hard is no joke.

Read More

Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser
Lian Li / DAN A4-H2O Black mini ITX Steel Mesh Minimalist PC Gaming Case w/ PCIe 5.0 Riser

PayPal Credit

Monthly Payment: £11.78
Instalment Rate: 16.9% p.a. (fixed)
Cost of purchase: £129.98
Total inc. interest: £141.29
Example
Minimum Spend: £99
Instalment Rate: N/A
Cost of purchase: £99
Total inc. interest: £99
If you are approved for a credit limit with PayPal Credit and use it for future purchases, the APR for those purchases won't be more than 23.9% and may be even lower.

Representative Example:

Purchase Rate: 23.9% p.a. (variable)

Representative: 23.9% APR (variable)

Assumed Credit Limit: £1,200

Subject to status. Terms and Conditions apply.