Max. screen size
The largest laptop screen size that the stand is guaranteed to be compatible with. For comparison: the smallest netbooks have a diagonal of 10 –
12 ", ultrabooks are somewhat larger — up to
14" ; among classic laptops, 13" corresponds to the most compact models,
15 —
16" — medium format,
17" — large, and
18.4" is actually the "ceiling" for modern laptops.
Usually, the maximum diagonal indicated in the characteristics corresponds to the size for which the stand was originally designed. However the vast majority of models are able to work with smaller laptops, but this point should be clarified separately. In addition, you should not buy a device that differs markedly in maximum diagonal from your laptop — for example, an 18" stand is unlikely to be convenient for a 12" netbook.
Power Delivery
Power Delivery technology is relevant for stands with a USB hub. This feature allows powering the connected laptop directly from the stand.
Power source
Source of electricity for the functions of the stand that require power — primarily for the active cooling system (see above).
— From USB. Powered by computer USB port. The main advantages of this option can be called battery life and versatility. It is enough to connect the stand to the USB connector of the laptop installed on it — and it can be used regardless of the presence of sockets until the battery runs out, and if the laptop is powered by the network, then it is generally unlimited for a long time. Of course, you will need to use one USB port for use, but in many models this disadvantage is compensated by the presence of a USB hub (see "Additional"). But of the obvious shortcomings, one can only distinguish a decrease in the battery life of the laptop — after all, the stand also consumes battery power.
— From the network. Powered by a conventional household network 230 V. This option provides high power, which is more than enough even for the most high consumption cooling systems. On the other hand, it only works when there are outlets nearby and requires the use of a power cord, which creates inconvenience and limits mobility. Theoretically, the advantage of AC power is that it does not drain the battery of the laptop; however, in fact, this point can hardly be called significant, because. such coasters, by definition, are not designed for stand-alone use when you need to save battery. As a result of all this, mains power is very rare — mainl...y in the largest models.
Table top/platform size
The size of the surface intended for the direct placement of a laptop. This parameter allows you to fairly accurately assess how the stand is suitable for your device — after all, even laptops with the same diagonal can vary slightly in length / width.
Weight
The total weight of the stand. You should pay attention to this parameter first of all if you plan to constantly carry the stand with you, along with a laptop — here light weight can be a noticeable advantage. But if you are looking for an option purely for home use, there is most often no need to pursue low weight: other things being equal, it can be a sign of a small thickness of materials and, as a result, relatively low reliability. In addition, a more massive stand is more stable, it is more difficult to budge or knock over by accidental touch.