Lian Li A4-H2O Mini-ITX PC Case, Triple-Slot Mount GPU, Aluminum Exterior & SPCC Steel Interior, 240mm AIO, SFX Sandwich Layout, PCIe 4.0, Supports SFX/SFX-L PSU (A4-H2O A4 Black)

Got this case and was excited to put together my own small form factor build. It is super easy to work with. Just keep in mind it is a small case so it is definitely going to give you a bit of a brain puzzle for managing cables and getting everything to fit. If you are going for an ITX board with a AIO on top, I would recommend sticking with a slim variant as I ran into ram clearance issues; I opted to pit it on the side and add 3 exhaust fans on the top to help promote the original airflow design. I currently have a 360mm AIO a 9070 XT GPU an SFX PSU, and managed to still add 6 additional fans inside the case. I use this for my entertainment/VR build and it is doing perfectly fine without issues. Easy to work with, great build quality, love the air flow and room for fans and ease of access with the side panels popping off so easily, but staying locked into place securely at the same time. It also looks great in my living room with the black finish and wood accents. I'd also highly recommend looking at GamerNexus' review of the case to get an idea of how to get the cooling solution right if you are seriously considering this case; they helped a lot with my design choices.

Not a small form factor case by any means, but if you want something compact that can hold an mATX motherboard and full-sized ATX power supply, as well as excellent GPU support and still have room for 3.5" hard drives, this is the case to get.Lian Li makes incredibly easy to assemble cases packed with accessories and this is no different. Installation was a breeze and temps are super low (currently running a 12600K and RX 9060 XT 16GB), as is the noise level. The only downside is the lack of cable management, but if you're buying the all-mesh version, that shouldn't matter too much.

This case is absolutely amazing, punching well above its weight class. Let's start off with what I have inside mine -- an i7 12700K and am RTX 3090 TUF, powered by a Cooler Master V850 SFX PSU. Man, does this case make it happen.The H2O is able to handle this kind of power because the CPU is liquid-cooled, and the GPU sits on the other side of this sandwich style case. The case itself is rock solid, utilizing a near tool-less snap-together design and plenty of ventilation for its size. It is larger than the previous model (Dan A4 SFX), due to the intention of this being water-cooled.I opted for an MSI CoreLiquid 240R ARGB V2, since the water block is small and offers ARGB. It tames the temps well on my 12700K. You'll need to make sure your AIO will fit in this case, as there are many that won't -- either because the pump/water block is too tall or because the hoses are too thick. You'll also want something that has hoses on swivel elbows. Otherwise, routing the hoses and closing this case will be next to impossible. This was hands-down the hardest aspect of building in this case -- managing the AIO hoses.The A4-H2O gets a lot right. You can cool some higher end CPUs, use a full length GPU, and a semi-pleasant building experience. To top it off, it looks amazing, and the parts are high quality. Just keep your hands off the case, as the finish shows off fingerprints well.This case is an excellent competitor for the NR200, because it's 8 liters smaller, and has nearly all-metal construction. To me this one is the obvious choice. Also in this form factor I would avoid i9 CPUs entirely. They eat up too much power, and make too much heat.My experience with this case has been fantastic, but it did leave me wanting more. Having a liquid-cooled, 11.24-liter PC means it's going to be a tad heavy. It's also too big to fit into my DSLR camera bag. I also think this case's width dimension would be a tight fit in a carry on-size tough case like one from Pelican.If you need a small form factor PC for saving desk space, this is an excellent option. That's the niche this serves for me, and it delivers.Maybe you can make this a portable powerhouse for more than gaming. Its too big and heavy for me. Personally, I've found my 8.1-liter KXRORS S300 case to be a better road warrior, because it fits in my DSLR bag and weighs less. Sure, that one can't be as powerful, but it games very well, albeit a little louder.

Nice and compact, easy to install parts, possibly the best airflow for cooling you could get, huge area for a big gpu (fit a 3 slot 4080 super expert lad an example) , and lots of places to mount fans.Pretty happy with it, but I’m a bit disappointed by the lack of places to cable manage. I get that the back is mesh for airflow and adding too much room in the back might make it bulky, but I’d be nice to have places to route the wires and at least some room in the back to hide cables. As a side note, would’ve liked a place to mount at least a 120mm fan to the front, as it’s a perfect way to get more airflow.Also, fair warning, don’t get a 360mm AIO, as you won’t be able to mount it on top with the psu holder in the way. I’d recommend either a tower cooler or 240mm AIO at the most (or at lag leasing an AIO you can mount at the bottom of the case without worry of bubbles reaching the pump).