A lot of noise, they have very cheap fans.
It's ok for its price, I didn't find anything else in this size for the occasional use I wanted it for.

Very good laptop cooler, very lightweight and it fits a 17.3" laptop, not like some others that claim to be for 17 or 17.3" and the laptop sticks out.

barely fits a 17-inch laptop, sometimes it makes a little noise like a fan is hitting something, and sometimes it synchronizes and makes noise, I tap it a bit and it stops.

Good and sturdy base for a laptop with a 15.6 screen, covers the entire keyboard area. Adjustable air intensity with a bit more noise that could be better, but it does not disturb in an office environment. Compared to an older, less powerful and cheaper Powertech, it is classes above.

So, from 5 stars it drops to 3. Why? I bought two and I was excited about its effectiveness and its almost silent fan. However, before 3 months had passed, its power circuit developed a problem to the point where the laptop would not charge. In fact, I was ready to return my almost new ASUS (which had and still has a clear overheating problem) until I happened to notice that my other laptop also had charging issues when I connected it together with this one. I put in the second one today. If it shows the same problem, it is a big failure and a waste of money. I will return for a new review of it/them.

The fans are of mediocre quality, I didn't notice anything significant in the laptop's temperature, which has a 4090 and gets a bit like an oven in the summer, we're talking about 1-2 degrees at most...

The cable stopped making contact after just a few uses. Now I have to do acrobatics for it to work once in a while and no, it's not the cable's fault.

Very little noise, speed controller for the fans, very stable hold of my old 15.6 HP laptop, thin and light, if it lasts over time it will be perfect for its price..!

It really might be the best on the market in this category. It is much more powerful compared to all the others by a large margin (115 cfm while all the others are around 50 cfm). It’s a workhorse, I’ve had it for 5 years and it still works perfectly. It has a dial to adjust the intensity and also provides 2 ports at the back. It’s also very easy to clean, you don’t need to be a technician to unscrew it. I believe it is the best in its category.

very good for its price, it's not the most sturdy construction but it keeps the temperature low to a satisfactory degree. It is definitely value for money

It comfortably fits even an 18-inch laptop. It has 2 levels to raise the legs underneath and fans with adjustable speed. I think for its price it's just fine

Good laptop stand, it really fits up to 15.6 inches, not for more. Noise-wise, it is satisfactory from the fans. For its price, it is okay for what it offers.

With several height levels to reach eye level
A typical construction with two central fans that do a decent job. For office work, it supports just fine and for the 20€ it was purchased, it is a decent choice!
If you want it for gaming, get something more powerful

As shown in the photo, a (relatively old) 15.6" laptop fits perfectly on the stand, so I believe a 17" one would be larger than the stand. The cooling of the laptop with the setting on maximum (it has a rheostat for speed adjustment!) is exemplary, with a temperature drop of up to 10°C...!
Now, as for the noise, which is the main criterion for choosing a stand (let's not fool ourselves, noise is the issue, they all cool), it is imperceptible even in full operation. Obviously, users who had an issue with the noise encountered a faulty product

The cooling is good, but the noise is almost unbearable even at the low setting, resulting in me using it only as a stand.

The fan makes a very loud noise to the point where I don't turn it on anymore, I just use it as a support base.

Very good, I highly recommend it! However, for my own laptop, the cable should have been a bit longer to reach the USB port.

A very good choice for cooling your laptop. It has a very high-quality body and its fans have a very good airflow. One negative aspect for some people might be the noise of the fans (when they are running at full speed), but due to the controller it has, you can adjust them to lower speeds and therefore make them silent as well.

It does the job at maximum fan speed, reducing the laptop's temperature by up to 10 degrees, but kids, it makes excessive noise that is unbearable without headphones.

The purchase of the product is not worth it. In less than 8 months, the USB ports broke, the fans became loose, and naturally, they did not work.

For its price, it's fine, plastic but convincing in terms of construction. The USB ports still work after a few months, I haven't had any issues, I already have a keyboard anyway. The issue is that if it's a USB 3.0, when you connect it to the laptop, it automatically becomes 2.0.
At first, I would have thrown it away because of the noise, it doesn't make too much noise but it was annoying and buzzing. Now it has become straighter and more durable. I have it at the end with the laptop lid open. Good cooling, don't expect miracles on laptops with small openings and closed lids, get the company's doctor to clean it from the inside first and a good thermal paste, of course, and then compare.

I bought it for Sony with a 16.4" screen and it fits perfectly for this size. It seems to have good quality construction, it has an effect on cooling but the fan makes annoying noise even at the lowest setting, more like a bearing than aerodynamic, so I don't use it. I would buy another one without noise.

After two years of use, I can say that it is a reliable stand with good cooling. At first, the plastic doesn't inspire much confidence, however, it hasn't suffered any damage so far even though I carry it in a bag.
What you need to know:
- It only has inputs from the left side (meaning you have to place it on the same side as your laptop)
- I don't think it's suitable for a 17-inch laptop. My 15.6-inch laptop fits just right.

It is a good base for its price. My laptop is 15.6 inches and fits perfectly, I don't know if it will comfortably fit a 17-inch laptop.

I have the Matebook D14 laptop with this cooler. When I play CS:GO with max graphics and while the laptop is charging, the laptop's temperature reaches up to 54 degrees, whereas without this cooler, the CPU reaches 78 degrees. So, I believe it does its job and more for its price. The only negative thing is that it makes a strange sound, as if the fan is touching something

Beautiful in construction and sturdy, it perfectly fits my 15.6-inch laptop without protruding too much, but it sounds like a tractor. The actual decibel level is 35-50, not the 21 it claims. It's not just a gentle breeze, but the fans sound like they have an internal combustion engine. It can't even handle the lowest setting, let alone the highest. Another 10-year-old laptop I have with a single small fan is much quieter. So, when the fans are turned off, it can be used as a simple stand.

It is also misleading that it claims to have 2 USB ports because one is used for power supply, so essentially you only get back what you lose.

It is the 2nd one I buy, it has very good features
with two 140mm fans and maximum airflow of 115 CFM
only that in size it is for 15.6 and not for 17-inch.

Very good base. It significantly reduces the laptop's temperature and maintains it at normal levels even during gaming (the laptop I used is not even a gaming laptop and has a pretty bad cooling system). The only negatives I can find are that in max mode the noise is borderline annoying and that even though it says it is for laptops up to 17'', my 15.6 laptop fits perfectly.