PSU max lenght
Possible length of the PSU that can be installed in the case.
Graphics card max lenght
The maximum length of a graphics card that can be installed in this case.
Modern mid-range and top-end video cards with high performance often differ in considerable length, which is why such a card can not fit into any case. So before collecting components, it is worth evaluating the length of the proposed graphics card and choosing a case in which it is guaranteed to fit. This forethought is useful anyway, but it's especially true if you're building a system that requires a powerful graphics adapter, such as a high-end gaming PC or 3D design workstation.
Fan max height
The highest cooler height allowed for this case.
In this case, we mean a cooler used to cool the processor — such a component is found in the vast majority of modern PCs. Height is measured relative to the motherboard.
Fans (top)
The number of fan slots
on the top side of the case, and the size of the fans these slots are designed for. The presence of the fans themselves in the kit should be specified separately.
The larger the fan, the more advanced it is considered: a large diameter allows you to work efficiently at relatively low speeds, which reduces the noise level and energy consumption. Case fans are available in several standard diameters, and the seats under them can be designed for both one and several sizes — for example, 120 / 140 mm. At the same time, in some models, the available number of seats also depends on the chosen size: for example, there are gaming cases where you can install either one 180 mm fan or four 120 mm fans at once.
Liquid cooling (front)
The size of the seat for the water cooling system provided on the front side of the case.
In cases with CBO support, water cooling radiators are installed in the same slots as traditional fans. In other words, either a fan (fans) or a CBO radiator can be installed on the same seat. The size of the seat under the CBO is indicated by one number — the length (on the larger side); the width can be determined based on these data. The fact is that modern CBO radiators usually use fans of one of the standard sizes — 120 mm or 140 mm; and if there are several such fans, they are arranged in a row. As a result, the length of the radiator turns out to be a multiple, and the width is equal to one of these numbers: for example,
280 mm is 2x140 mm with a width of 140 mm, and 360 mm is 3x120 mm with a width of 120 mm. In general, the size of the front radiator of
240 mm or less is considered relatively small, 280 mm — medium,
360 mm — large, and in some models it reaches
420 mm or even more.
Note that in this case, the same nuances are relevant as for air cooling: a larger fan takes up more space and costs more, but it is considered more advanced, as it can work efficiently at a lower speed — and this reduces the level of noise and vibration.
Liquid cooling (top)
The size of the seat for the water cooling system provided on the top side of the case.
In cases with CBO support, water cooling radiators are installed in the same slots as traditional fans. In other words, either a fan (fans) or a CBO radiator can be installed on the same seat. The size of the seat under the CBO is indicated by one number — the length (on the larger side); the width can be determined based on these data. The fact is that modern CBO radiators usually use fans of one of the standard sizes — 120 mm or 140 mm; and if there are several such fans, they are arranged in a row. As a result, the length of the radiator turns out to be a multiple, and the width is equal to one of these numbers: for example,
280 mm is 2x140 mm with a width of 140 mm, and 360 mm is 3x120 mm with a width of 120 mm. In general, the size of the upper radiator of
240 mm or less is considered relatively small, 280 mm — medium,
360 mm — large, and in some models it reaches
420 mm or even more.
Note that in this case, the same nuances are relevant as for air cooling: a larger fan takes up more space and costs more, but it is considered more advanced, as it can work efficiently at a lower speed — and this reduces the level of noise and vibration.
Liquid cooling mounts
The total number of places for water cooling systems provided in the case, in other words, the largest number of CBO radiators that can be installed in the case. Such radiators are usually placed one at a time on the side of the case, so several radiators are most often located on different sides: for example, 3 places for CBO can be located at the back, top and front.
When estimating the number of seats (of all types), it should be taken into account that CBO fans and radiators usually use the same seats.
USB 2.0
The number of native
USB 2.0 connectors provided in the case.
Such connectors are usually located on the front side (for more details, see "Location"). They are most convenient for peripherals that need to be connected and disconnected often — for example, "flash drives" (for permanently connected devices, it is more convenient to use the motherboard connectors displayed on the rear panel). Specifically, USB 2.0 is now considered obsolete: it provides a data transfer rate of only 480 Mbps and a relatively low power supply. However, in many cases this is enough, and USB 2.0 ports continue to be used, including in fairly advanced cases.