The Lian Li A4-H2O is a compact Mini ITX case designed specifically for efficient space management and high-performance cooling. With its 11-liter capacity and sandwich design layout, this case supports both triple-slot GPUs and 240mm AIO water cooling solutions, allowing for powerful builds despite its small form factor. Constructed from durable aluminum with an SPCC steel interior, it strikes a balance between lightweight portability and robust stability. The fully removable panels facilitate easy assembly and improve cable management, catering to the aesthetic preferences of enthusiasts. Compatible with SFX and SFX-L power supplies, it offers versatility in power delivery. With a commendable average rating of 4.6 stars from users, this case has proven to be a popular choice for compact gaming rigs and performance-focused setups.