Mid-tower PCs haven’t gone out of favor—as one in all the most flexible (and affordable) sizes, they’re a straightforward alternative for builders. But today, small kind issue (SFF) DIY PCs are modern. The enthusiasm round them continues to unfold too, with large element distributors hopping on board so as to add their spin to the method.
For the uninitiated, a tiny desktop pc could not make a lot sense, since a mid-tower system is quick and simple to assemble. Prices begin a lot decrease, too. If you’re not aware of SFF PCs, Intel’s launch of its Dragon Canyon NUC, a modular 8-liter gaming PC, could look like an unreasonably costly area of interest indulgence.
But when you dig into the small print about SFF PCs, it turns into fairly clear why folks signal themselves up for these tiny techniques. Here are the 5 key factors to know concerning the lilliputian facet of PC constructing.
#1: SFF is all about case quantity
Cooler Master
These days, small kind issue builds are usually outlined as any system in a case below 20 liters in quantity. You might even see some case producers stretch the definition (for instance, SilverStone raises the lower off to 23L), however the SFF neighborhood holds to 20L.
What goes into the system isn’t as rigidly outlined. However, almost all circumstances take mini-ITX motherboards as their largest measurement. Most additionally restrict you to smaller energy provide kind components (SFX, SFX-L), with very compact circumstances supporting solely SFX. That mentioned, don’t take this as a rule. Recent SFF circumstances embrace fashions that assist ATX energy provides, similar to bigger circumstances.
Shapes and layouts additionally range—much more alternative exists now than in earlier years. Currently extra focus is on PCs that may take a discrete graphics card. For such circumstances, shoebox is the commonest form. And as you shrink their measurement, sandwich layouts (the place the the case is split into two sections, with the GPU occupying one half and the CPU/motherboard the opposite) are in style for higher airflow. You don’t see as many basic layouts, the place one chamber homes all of the parts.
#2: Case costs are not sky excessive
Not way back, spending between $180 and $250 for a small kind issue case wasn’t unusual. While you could possibly discover some fashions for much less, people who accommodated a discrete GPU trended nearer to 20L and have been made with cheaper supplies.
But within the final couple of years, the market has begun to alter. Big case distributors like Cooler Master and Lian Li have waded into SFF with a vengeance, they usually’re not merely capitalizing on present zeitgeist. They’re democratizing it, too. Cooler Master made waves with the astonishingly sleek yet affordable NR200, which launched at $80 USD. Even at larger worth factors, which shrink the footprint of the case, incorporate extra options, or boast even fancier supplies, the fee is on par with bigger circumstances of comparable high quality. Spending $130 on the Lian Li A4-H2O doesn’t really feel like overspending in comparison with the corporate’s O11 Air Mini—only a completely different path taken.
#3: But SFF PCs nonetheless value extra total

Asus
We like to see the falling costs on small kind issue circumstances, since that will get extra folks into the SFF scene. But the general value of constructing an SFF PC nonetheless runs larger on common, due to some components.
The predominant sticking level is the necessity for a mini-ITX motherboard. Despite having fewer options in comparison with ATX boards on account of their smaller measurement, they have an inclination to start out at larger costs. And whereas you could find a case right here and there that may accommodate an ATX energy provide, most SFF builds require an SFX or SFX-L energy provide, which additionally begin at larger costs. You’re not paying extra for much less, per se—you shell out extra since you begin with nicer gear. Manufacturers don’t sometimes make stripped-down mini-ITX boards or SFX PSUs.
Ancillary purchases can creep in, too. They’re belongings you don’t normally want with a bigger construct, like fan grills or completely different energy cables. In extra spacious lodging, your wires will be extra simply routed round followers so that they’re not chewed up by the blades. Similarly, you don’t must sweat rigid energy cables. Even in a micro-tower case, you don’t must wad them up and cram them into tight crevices. And in case you’re into profiting from your {hardware}—or stay in deathly concern of suboptimal temperatures—chances are you’ll find yourself placing more cash into higher-performing cooling, too. You don’t need to plan on a picture-perfect construct to finish up spending extra. Costs can nonetheless add up as you compensate for having much less room to work in.
#4: Your {hardware} gained’t fry
You can’t escape the legal guidelines of nature, however packing {hardware} into tight quarters isn’t their demise sentence. Modern SFF circumstances pay far more consideration to airflow, and extra importantly they higher accommodate closed loop coolers, which will help drop temps with out taking a ton of house.
The greater issue with temperatures in small kind issue builds is planning. Unlike with a mid-tower PC, you possibly can’t decide a set of components which can be low cost or attraction to you, slap them inside, and count on an optimum consequence. To preserve CPU and GPU temps inside beneficial ranges, you need to take into account the structure of your chosen case and the way your components record will work together inside that structure. But regardless that an SFF PC will run a little bit hotter than a mid-tower construct, you possibly can nonetheless hit nice temps with some effort (and possibly a little bit more cash than initially anticipated).
#5: Building usually takes extra time

Alaina Yee / IDG
In bigger circumstances, you possibly can set up components in virtually any order. With small-form issue PCs, putting in parts sometimes follows a super order—and figuring that out all the time takes time. Even when the producer affords tips for the method, you possibly can nonetheless end up doubling again to fiddle with this or that. For instance, possibly it’s best to have routed the 24-pin energy provide cable from a distinct angle earlier than mounting the motherboard.
YouTube movies can scale back the trouble of figuring out the sequence of steps, however both manner, you’re nonetheless going to take a position extra minutes (or hours) total. Cable administration can take additional work specifically—when one PCWorld workers member constructed his first SFF PC, that was the very first thing that he learned.
Why go SFF?
A tiny desktop PC that may match nearly anyplace and be moved with ease between these spots is already fairly cool. Being in a position to pack in high-end components like a Ryzen 9 5900X and a Radeon RX 3080 in that very same pc is completely superior. Small doesn’t need to be a sacrifice of efficiency.
And with extra consideration being paid to the SFF scene, the room for various tastes solely grows. (No pun supposed.) That’s the rationale information about freshly introduced or launch circumstances get a lot hype. Improved aesthetics and modern designs proceed to reinforce the constructing expertise, whereas additionally providing extra flexibility and selection. Whole riffs on SFF builds like Intel’s Dragon Canyon NUC are particularly thrilling—you possibly can roll an 8-liter PC in below an hour.