Lian Li

Lian Li A4-H2O Mini-ITX PC Case

Name: Lian Li A4-H2O Mini-ITX PC Case, Triple-Slot Mount GPU, Aluminum Exterior & SPCC Steel Interior, 240mm AIO, SFX Sandwich Layout, PCIe 4.0, Supports
Brand: Lian Li
SKU: B09T73JG49

Status: Lian Li A4-H2O Mini-ITX PC Case: Unavailable on Amazon as of 2026-10-05 04:22 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

🛒 Search eBay for this model

Bottom line: The Lian Li A4-H2O Mini-ITX PC Case: Just 11 liters total volume, one of the smallest ITX cases sold; main trade-off: SFX or SFX-L PSU required, so no standard ATX unit carries over.

Unavailable on Amazon as of 2026-10-05 04:22 UTC

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: Continuum Infinity Mirror SFF Gaming PC Case… — $59.99 on Amazon as of 2026-10-06 16:30 UTC (price may vary).

View Current Price — $59.99

Similar: Vetroo M06 Mint Green Micro-ATX/Mini-ITX Mid… — $49.59 on Amazon as of 2026-10-07 04:28 UTC (price may vary).

View Current Price — $49.59

Similar: Cooler Master NCORE 100 MAX Mini-ITX PC Case… — $349.98 on Amazon as of 2026-10-06 16:25 UTC (price may vary).

View Current Price — $349.98

Original listing (currently unavailable) → Compare to similar pc cases

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-05

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ Just 11 liters total volume, one of the smallest ITX cases sold
✓ Fits triple-slot GPUs up to 322mm despite the tiny footprint
✓ 240mm AIO support via a removable top bracket, 55mm fan+rad clearance
✓ Full mesh on all panels feeds the sandwich layout direct cool air
✓ Aluminum exterior over SPCC steel, co-designed with DAN Cases

Cons

✗ SFX or SFX-L PSU required, so no standard ATX unit carries over
✗ 322mm GPU limit rules out the longest triple-slot flagship cards
✗ Radiator capped at 240mm, no room for 280mm or 360mm loops
✗ Sandwich layout means pulling the front panel just to seat the GPU

SpecPicks Verdict

SpecPicks scored Lian Li A4-H2O Mini-ITX PC Case using a rating × review-volume × price-fit model applied to published specs and reviews across the pc cases category. Lian Li's pc cases lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for pc cases of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

Compact 11-Liter Design: The A4-H2O is one of the smallest cases on the market at just 11 liters, yet it supports a triple-slot GPU and accommodates 240mm AIO water cooling, striking the perfect balance between size and performance.
Elegant Minimalist Aesthetic: Featuring a premium aluminum exterior available in black or silver, the A4-H2O showcases a minimalist design with extensive ventilation, making it a stylish addition to any living or entertainment space.
Innovative Sandwich Layout: Mounts the GPU behind the motherboard to maximize space and airflow. Removable front panel creates a wide opening for easy GPU installation, supporting triple-slot graphics cards up to 322mm, with full mesh panels on all sides for direct cooling.
Easy AIO Installation: A removable top bracket simplifies the installation of radiators up to 240mm in length, accommodating a fan-radiator combination with a thickness of up to 55mm for efficient cooling.
Compatibility: Designed to support both SFX and SFX-L power supplies, the case includes a pre-routed power cord extension to prevent interference with other components, streamlining the installation process.
Collaboration with DAN Cases: The A4-H2O is a collaborative project with Daniel Hansen of DAN Cases.

Full Specifications

Brand	Lian Li
Color	Black
Fan Size	12 centimeters
Material	Aluminum, SPCC Steel
Case Type	Mini-Tower
Model Name	A4-H2O X4 BLACK
Light Color	Blue
Model Number	A4-H2O X4 BLACK
Compatibility	PC
Cooling Method	Air
Number of Fans	2
Mfr Part Number	A4-H2O X4 BLACK
Number of Items	1
Total Usb Ports	2
Antenna Location	Gaming
Compatible Devices	Mini-ITX
Enclosure Material	Aluminum, SPCC Steel
Total USB 3.0 Ports	1
Warranty Description	1 year
Hard Disk Form Factor	3.5 inches
Full listing title	Lian Li A4-H2O Mini-ITX PC Case, Triple-Slot Mount GPU, Aluminum Exterior & SPCC Steel Interior, 240mm AIO, SFX Sandwich Layout, PCIe 4.0, Supports SFX/SFX-L PSU (A4-H2O A4 Black)

Ready to buy?

Amazon shows no buyable offer for Lian Li A4-H2O Mini-ITX PC Case at the last check. A similar in-stock product is Continuum Infinity Mirror SFF Gaming PC Case…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $59.99