Lian Li A4-H2OX5 Mini-ITX PC Case, Triple-Slot Mount GPU, Aluminum Exterior & SPCC Steel Interior, 240mm AIO, SFX Sandwich Layout, PCIe 5.0, Supports SFX/SFX-L PSU - A4H2OX5 Black

by Lian Li

3.8★ · 7 Amazon ratings as of Jul 9, 2026

• 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.