Lian Li A3-mATX MD Micro-ATX PC Case - White with Modular Design and High Airflow Support

This case is pretty sweet, honestly. I'm really digging the minimalist aesthetic they went for. It's surprisingly spacious inside, which makes building a breeze. Plus, the airflow seems to be solid so far. Definitely a solid choice if you're looking for a clean build.

Looks: I’m my opinion, this is the one of the best looking mATX cases on the market. I’m not big on LEDs and prefer subtle looks and this case nails that. Compatibility: The case is surprisingly roomy, however, if you’re fitting high end parts in here be prepared for a fight. It’s a bit fiddly getting the PSU mount in the right place and it took a lot of trail and error to fit everything in. For reference, I’m running a RTX 5080, Ryzen 7 9800x3D and a 360mm liquid cooler. I did have to swap out the fans on the CPU cooler to slimline ones though and I would also suggest running these throughout the build to save space. Noise: The case is surprisingly quiet, sometimes I can’t even tell whether my PC is on or not and it’s sat on the desk right next to me! Airflow: For my needs the airflow is more than adequate, I’m not going to be overclocking and the temperatures are very good, much better than my old setup. Functionality: While it’s not the smallest case on the market (and certainly not console level) I think it’s the perfect size and very light and easy to move around. I will be sticking with mATX in the future.

I wanted something smaller... not mini ITX and not ATX and this is the sweet spot mATX Looks are always subjective I understand that, but this case is sexy, the mix of metal with glass and wood... just perfect (even if had LOT's of inspiration from Fractal). Build quality is amazing, and surprisingly cheap case, it's quite easy to build on if you plan in advance all the components that you want as based on components size changes... I would recommend 10000% for you to get SFX or SFX-L PSU so you have the best room for GPU and AIO (if using AIO). Cable management... you'll need to be very creative, but once you have all installed, the PSU holder can hide most of the cables on the side (never to be seen again). My first Lian Li case, have been NZXT and Corsair user for a while and I understand the hype, good quality at great price. If you want TOP performance for graphics card go for an SFF 5080 so you can still have ventilation intake at the bottom

Very well constructed case. Excellent access for build with multiple positions for fans. Wood front looks very nice. Worth noting case comes without fans and has no power indicator light.

I'll start with the Cons: There are no indicator LEDs in this case, this does not affect its function, but, if one has elected to not have their eyes seared by a multitude of RGB lights etc. in their build, there is no way to be sure the PC is switched on until the POST is complete... There is also no reset button (which was obvious from the illustrations, but still worth a mention, just in case! Cable management is virtually non-existent, so liberal use of cable ties is needed to maintain good airflow within. And the Pro's - of which there are many. (So I'll lazily list the best features) Build quality is excellent, as is the finish of all panels. The case is a dream to take apart and reassemble, panels clip off, and the top is held by 2 thumb screws. When assembled the case is very rigid, despite the panels being relatively lightweight. I built with a Mini ITX motherboard, which was an easy fit, the internal cables were long enough to reach connectors on the board, but only just with the internal USB cables, I would think that, if using a Micro ATX board those cables would be far more relaxed and easier to manage. Airflow is surprisingly good when using a 360mm AIO cooler, even without any other additional fans fitted. For fun I have put my AMD R7 7800X3D CPU and Radeon 7900XTX GPU in, the GPU runs cooler in this case than in my full tower - indicating I need to look into airflow with that case! Minor gripes aside, I think this is a great case, it is easy to build in, with some versatility in PSU mounting and has space enough, and sufficient airflow, to cope with a 3 slot full-size GPU. Lian Li have produced a very good case, at a reasonable price, worth buying, in my opinion.

Great case with alot of quirks that need negotiating with during a build. In terms of space I easily fit a 7900xt Merc in without its support bracket, using the mini one provided in the case to support it at three points. For cooling the Noctua nh-u12 leaves plenty headroom and a dual tower would fit quite comfortably. Frankly the side mounted fan bracket is a bit unnecessary. There is a best order to do things too with mobo, then all the connectors to mobo, then fans, then card was the best procedure for me. The real difficulties came from getting the pannel cables routed and secured down enough to not interfere with the GPU fans and I think it would be a real challenge with a full Fatboy 4 slot card. You'll probably want to use m.2's too as the 3.5/2.5 drive mounts share space where a long gcard would sit. There's maybe space for a 1x pci card above your gcards but most other slots are going to be blocked off if you are using anything larger than a 2 slotter. I went for a SFF PSU too but a standard atx will work out the box and I highly recommend it's fully modular to save space. Cable routing is pretty tough with very few mounting points for cable ties and power cables eith a tidy rats nest likely despite best efforts. Overall a great case though.

Quite a good case with good ventilation and mounting options, managed to put in two 360 radiators.

Me agrada mucho, no fue difícil armar en el espacio reducido, tiene muy buena apariencia, le caben muchas cosas, estoy incluso usando un Noctua NH-D15, un PSU ATX y una GPU de 300mm

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I recently built a system using the Lian Li A3 and I’m genuinely impressed. As someone who wanted a true m-ATX build without sacrificing looks or quality, this case hit all the marks. The compact footprint is one of my favorite aspects—it fits perfectly on my desk without feeling cramped, yet still offers excellent airflow and clearance for components. Lian Li clearly optimized the space well: there’s room for a full-sized GPU, multiple storage drives, and tidy cable routing despite the smaller form factor. I was worried about space restrictions, but assembly was intuitive and comfortable even for a first-time builder. Build quality feels premium, with solid panels and clean finishes that elevate the overall look. The case stays cool under load, and the included fan support is great for keeping thermals in check. If you’re building a high-performance m-ATX rig and want something that looks great and performs as well as it looks, the A3 is a fantastic choice. Highly recommend for m-ATX enthusiasts who want a balance of size, performance, and aesthetics!

Looks good and spacious for an matx case. Still pending build. Fits perfectly on my TV table. Using it for couch gaming...