Lian Li A4-H2OA5

Lian Li A4-H2OA5 Silver Mini-ITX Triple-Slot Mount GPU Aluminum Exterior & SPCC Steel Interior 240mm AIO SFX Sandwich Layout PCIe 5.0

Lian Li A4-H2OA5 Silver Mini-ITX Triple-Slot Mount GPU Aluminum Exterior & SPCC Steel Interior 240mm AIO SFX Sandwich Layout PCIe 5.0

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  • 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 Design: This unique sandwich layout accommodates a triple-slot GPU, mounted behind the motherboard using a PCIe Gen. 5 riser cable. Mesh panels on the bottom, sides, and top ensure optimal airflow for direct cooling. Removable bracket supports SFX and SFX-L power supplies, with a pre-routed power cord extension to minimize hardware interference.
  • Updated PCIe 5.0 Riser Cable: The A4-H2O now includes a 240mm long PCIe Gen.5 riser cable, to vertically mount modern GPUs behind the motherboard. The PCIe 5.0 riser cable delivers up to 32Gb/s bandwidth, which is twice the speed of PCIe 4.0. It supports PCIe 2.0 to 4.0 devices and ensures stable signal transmission with consistently high performance across wide range of GPUs.
  • Collaboration with DAN Cases: 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.

Specifications Overview

Model A4H2OA5
Release Date March 2026

* First availability for purchase, it may not correspond to the actual market launch date.

Type Mini ITX Desktop
Color Silver
Includes Power Supply No
External 5.25" Drive Bays 0
External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 1
Internal 3.5" Drive Bays 0
Motherboard Compatibility Mini ITX
Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2 Type C
Dimensions 326 mm x 140 mm x 244 mm
Volume 11 L
Max VGA length allowance 322 mm
Expansion Slots 3
Back Connect Support No


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