Lian Li A4 H2O PCIE 4.0 Mini-ITX Aluminum Case, 3 Expansion Slots, 2.5" Drive Bays, Up To 240mm Radiator Support, 120mm Fan Support, Max 55mm CPU Cooler Clearance, Black | G99.A4H2OX4.00 BL

The A4-H2O is an 11-liter small form factor case, a collaboration project with DAN Cases. Based on the original DAN A4-SFX case sandwich layout concept, the A4-H2O continues the minimalist and compact form factor with improved hardware compatibility (including AIO water cooling) and simplifies installation. 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.