Introducing the Lian Li PC-A55

Marking our fifth venture into Lian Li territory in recent years, the PC-A55 enclosure we have on hand is another unique, slightly-off-the-wall design from a company we've come to expect this kind of thinking from. After all, at Computex they were showing off a case with 26 3.5" bays and another one that looks like a small train. It's not unreasonable to expect some unique cases from Lian Li, and the PC-A55 is definitely one.

What Lian Li has attempted to achieve with the PC-A55 is essentially to make a full ATX enclosure as small as humanly possible while still being easy to build and service. In some ways they've definitely achieved this, but a lot of sacrifices had to be made to get the PC-A55 to where it is and unfortunately, we're not sure they were worth it.

Before we get deeper into the review, yes, the Lian Li PC-A55 has a very unfortunate name for anyone familiar with leetspeak. Those of you with a juvenile sense of humor (like me, for example), are probably going to enjoy this review tremendously. I'm not sure how to address this otherwise; I need to refer to the model name to write the review, so hopefully we can get through this with a minimum of tittering and focus on the enclosure at hand.

Lian Li's design borrows a bit from Silverstone in that it's intended to be vertically cooled; air is drawn in from the bottom of the enclosure and out of the top. With Silverstone's cases, this is often very effective, but in my experience it has less to do with natural convection and much more to do with the clear path air has to move through the heat-generating components. Part of the reason why the FT02 is one of the best air cooling enclosures around (if not the best) is because air has a straight shot from the bottom intake up through the (preferably tower) CPU cooler and out of the top of the case, with virtually no obstructions. As you'll see, the PC-A55 doesn't share this crucial design point.

Lian Li PC-A55 Specifications
Motherboard Form Factor Mini-ITX, Micro ATX, ATX
Drive Bays External 1x 5.25”
Internal 2x 3.5", 2x 2.5"
Cooling Front -
Rear -
Top 1x 140mm exhaust fan
Side -
Bottom 1x 140mm intake fan
Expansion Slots 7
I/O Port 2x USB 3.0, 1x Headphone, 1x Mic
Power Supply Size Standard ATX
Clearances HSF 150 mm
PSU 160 mm
GPU 12.2" / 310mm
Weight 4.1kg / 9 lbs.
Dimensions 9.64" x 17.6" x 20.39"
245mm x 447mm x 518mm
Special Features USB 3.0 connectivity via internal header
All-aluminum build
Price $109

Lian Li advertises the PC-A55 as having a single USB 3.0 port and a single USB 2.0 port hidden under a door on the top of the case, but this is incorrect; the two ports share a single USB 3.0 internal motherboard header, and despite being black, the so-called USB 2.0 port does function at USB 3.0 speeds. Why they took the time to do this and advertise them as being different is beyond me.

As a whole, the PC-A55 is small and light, but because it supports ATX motherboards it's not quite small enough to notice the difference between a slightly larger, more standardized ATX case. Just the same, when we pop it open and assemble it we'll see that Lian Li made every single interior inch count; this really is about as small as they can get it while still accommodating ATX.

In and Around the Lian Li PC-A55


View All Comments

  • Bitmap - Tuesday, June 19, 2012 - link

    I laughed my A55 off Reply
  • MadAd - Wednesday, June 20, 2012 - link

    "We're at a juncture now where there are very few reasons to go with an ATX motherboard over a Micro-ATX board"

    Exactly!! PC form factors need a reboot if they are to survive the next 10 years onslaught of tablets. ITX is a fantastic format limited only by its 17x17 size allowing only a single expansion slot and 2 channels of ram - and that really makes sense when paired with a low profile card in a thin case ... as soon as we need some HDDs, or a larger graphic card, or a soundcard and a graphics card then theres a big void between that and the 4 slot uATX format, filled only by the defunct DTX format (that imo with only 2 slots really didnt give much more of an option to ITX.)

    My ideal board would have 3 expansions, 2x16 and 1xPCI, 4 Ram Slots and 6 Satas in a size not much bigger than ITX however this is all moot since the biggest problem is elsewhere too, we still have a problem with things like PSUs, they need to be smaller, same with Optical RW drives, do we need more than a laptop slimline size for opticals?

    The first CD i burned in the last century was in a 5.25" bay, while we cant do anything about the width of the disk certainly it could slimline allowing sideways mounting yet there are no standard mountings for slimline Optical drives in the ATX spec.

    Apart from the wishful thinking I do believe its time to step down from these humongous tower cases. I am already planning my next build into a uATX but of course anandtech doesnt really cover uATX stuff now does it *grin*
  • rickcain2320 - Thursday, June 21, 2012 - link

    I have the previous version of this case and it has a severe hot spot at the top. The addition of the exhaust fan at the top hopefully resolves this problem. They rotated the power supply so it blows in rather than out (I guess) which is good, because the old fan direction was right over the hard drives, bathing them in warm air from your GPU and CPU. I regularly kept my front panel off because of overheating.

    Makes me wonder if I do some minor surgery and flip my fans over, could I achieve something similar?
  • manythings - Tuesday, October 20, 2015 - link

    I have read this several times and still didn't get the joke about the name of the unit. Is it about being "PC"? But every Lian Li case is a PC. Could the author explain the joke? Thanks Reply

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