Description
The darkFlash C275P is a small form factor PC case for Mini-ITX motherboards, finished in black, with two tempered glass panels and three PWM ARGB fans already installed. darkFlash lists it at 13.11 x 10.83 x 12.72 inches with an empty weight of 7.32 pounds, and states support for a 240 mm all in one liquid cooler. It first appeared in December 2024.
One caution about sources before going further. The product description field on this listing is empty, and the specification block contains only brand, model, dimensions, weight, color and date. Everything factual below comes from the product title and that short specification block. Small form factor cases live or die on clearance figures, and this listing publishes none of them. That absence shapes the entire review.
What the C275P Is
Mini-ITX is the smallest common motherboard standard, measuring 170 mm square, with one expansion slot and usually two memory slots. Cases built for it trade capacity for desk space. The C275P’s listed external dimensions work out to roughly 13 by 11 by 13 inches, which is compact for a case that accepts a full length graphics card and a 240 mm radiator, and considerably larger than the console sized ITX enclosures that take only low profile cards.
The shape suits a build where the components are meant to be seen: a Mini-ITX board, a visible cooler and lighting behind glass on two sides. It is a display case as much as an enclosure. That makes it a poor choice for anyone who wants a quiet box tucked under a desk and a strong choice for a build sitting on the desk where people look at it. Boards that fit include ITX options such as the ASRock Z790M-ITX WiFi on the Intel side and the ASRock A520M-ITX/AC on the AMD side, though as always the board’s own specification is what determines socket and memory support.
Cooling and Airflow
The three pre-installed fans
Three fans included in the box is a meaningful inclusion, because fans bought separately add up quickly and a small case needs them more than a large one. The important detail is the PWM designation. A PWM fan has a four pin connector and lets the motherboard vary its speed against temperature, which means the fans can idle quietly and ramp only under load. Three pin fans, by contrast, either run at a fixed speed or need voltage control. PWM is the better arrangement, and its presence here is worth more than the ARGB lighting that shares the same line in the specification.
ARGB refers to addressable lighting, where each LED can be controlled individually rather than the whole fan showing one color. Addressable lighting normally requires a 3 pin 5V ARGB header on the motherboard, and the listing does not state how the fans connect or whether a controller or hub is included. Check your board for an ARGB header before assuming the lighting will be controllable in software.
Liquid cooling
The listing states support for a 240 mm AIO, which is the common two fan radiator size and is generally enough for mainstream processors in a small case. What the listing does not say is where the radiator mounts, whether installing it conflicts with the pre-installed fans, or what radiator thickness is accommodated. Those are the details that decide whether a particular cooler fits. If air cooling suits you better in a compact build, low profile coolers such as the Noctua NH-L9i and the taller Noctua NH-L12 Ghost S1 Edition are designed for exactly this problem, but you would need a stated CPU cooler height limit from darkFlash to confirm either one.
Highlights
- Mini-ITX case measuring 13.11 x 10.83 x 12.72 inches, weighing 7.32 pounds empty.
- Three PWM ARGB fans supplied and installed, allowing motherboard controlled fan curves.
- Dual tempered glass panels giving a wrap around view of the interior.
- Stated support for a 240 mm all in one liquid cooler.
- Black finish, model number C275P, listed since December 2024.
Things To Consider
The missing clearance data is the main issue, and for a small form factor case it is a serious one. The listing does not state:
- Maximum graphics card length, or whether the case takes a triple slot card.
- Maximum CPU cooler height, which is the figure that decides every air cooling choice.
- Power supply form factor. ITX cases variously take ATX, SFX or SFX-L units, and these are not interchangeable. This is the single most expensive mistake to make on a small build.
- Radiator mounting positions and maximum radiator thickness.
- Drive bay count and type, beyond a generic reference to a hard drive cage.
- Front panel port selection, including whether there is a USB-C connector.
Do not order this case without getting those numbers from darkFlash directly or from the retail packaging. A case that physically will not accept your graphics card or your power supply is not a compromise, it is a return.
Two further points. Tempered glass on two sides looks good and traps heat: glass is an insulator and a case with less mesh area moves less air for the same fan speed. Three included fans help, but a heavily loaded graphics card in a small glass box will run warmer than the same card in a mesh fronted mid tower. And glass panels add weight and fragility, which is why a 7.32 pound empty weight is on the heavy side for a case this size.
Finally, cable management in Mini-ITX is genuinely harder than in a larger case. There is less room behind the tray, ATX power supply cables are often too long for the run, and a full length graphics card leaves very little space for routing. Plan for it rather than discovering it.
Who Should Buy It, and Who Should Not
Buy the C275P if you want a compact, visible build, you value three PWM fans and dual glass being included rather than bought separately, and you are prepared to verify the clearance figures yourself before ordering the rest of the parts. For a first small form factor build with mainstream components, the included cooling and the 240 mm radiator support cover the two things that most often go wrong.
Do not buy it if you need documented compatibility before purchase, if your build includes an oversized graphics card or a full ATX power supply you already own, or if quiet operation matters more than appearance. A different small case such as the JONSBO N2 targets storage focused builds instead, and our computer cases category lists what else we cover.
