DAN A4 H2O is 11L aluminium Mini-ITX case, created in collaboration with Lian-Li & DAN Cases. Prices start at US$129 for PCIe 3.0 and US$169.99 for PCIe 4.0 version. The A4 H2O is available via Newegg, CaseKing & Overclockers UK.




SPECIFICATIONS
DAN A4 H2O | SPECIFICATIONS |
DIMENSIONS | 326 x 140 x 244mm (L x W x H) |
VOLUME | 11.1 Litres |
MATERIALS | Aluminium & Steel |
I/O | 2x HD Audio USB 3.0 Type-A USB 3.1 (Gen 1) Type-C |
MOTHERBOARD COMPATIBILITY | Mini-ITX |
MAX CPU COOLER HEIGHT | 55mm |
EXPANSION SLOTS | 3 |
MAX GPU LENGTH | 322mm |
MAX GPU THICKNESS | 61mm (triple slot) |
RADIATORS SUPPORTED | 240mm |
RADIATOR COMPATIBILITY | 55mm thickness (radiator + fans) |
POWER SUPPLY COMPATIBILITY | SFX / SFX-L |
CASE FANS SUPPORTED | Top: 2x 120mm Bottom: 1x 92mm (fan mod / unofficial – replaces 2.5″ drive) |
2.5 / 3.5” DRIVES SUPPORTED | 1x 2.5″ |
BUILD




CASE | DAN A4 H20 X3 |
MOTHERBOARD | GIGABYTE B660I AORUS PRO DDR4 (paid link) |
CPU | Intel 12700K (paid link) |
CPU COOLER | EK AIO Basic 240 (paid link) |
GPU | RTX 3070 Ti (paid link) |
GPU RISER | 200mm PCIe 4.0 ITX Riser Cable (paid link) |
PSU | Corsair SF 600 Platinum (paid link) |
RAM | Crucial Ballistix, 16GB (2x8GB), 3600MHz, CL16 (paid link) |
STORAGE | 1TB M.2 NVME (paid link) |
CASE FANS | Top: 2x Noctua NF-A12x25 chromax.Black (paid link) Bottom: Noctua NF-A9x14 (paid link) |

We were able to install a 92x14mm Noctua fan in-place of the 2.5″ SSD using anti-vibration fan mounts. We set our 92mm fan to exhaust and AIO fans to intake. You can fit a 92x25mm fan if your using custom cables.
THERMAL BENCHMARKS



CONCLUSION
The DAN A4 H2O is an excellent 11L case. Cooling performance is as expected for case of this size & hardware compatibility. Our build faired little better due to using unofficial 92mm bottom exhaust fan instead of 2.5″ SSD. One thing we noticed was having our GPU fans running increased CPU temperature in CPU only workloads. The A4 H2O is among the best SFFPC cases currently available and has an excellent pricetag to match.
LIKED | DISLIKED |
Design aesthetics | Case modularity (limited to GPU) |
Case materials (aluminium vs SPCC) | Case flexibility (primarily designed for AIOs, not air cooling) |
11 litre case size (can accommodate seriously powerful hardware in very small footprint) |