Dark mode
USA
Choose city or write postal code
We were unable to accurately determine your city. Please, select a city to display stores and prices for your region.
Catalog   /   Computing   /   Laptops & Accessories   /   Laptop Coolers

Comparison Crown CMLS-940 vs Deepcool U-Pal

Add to comparison
Crown CMLS-940
Deepcool U-Pal
Crown CMLS-940Deepcool U-Pal
from $13.00
Outdated Product
from $40.02 
Outdated Product
Add to comparison
Crown CMLS-940
Deepcool U-Pal
Crown CMLS-940Deepcool U-Pal
from $13.00
Outdated Product
from $40.02 
Outdated Product
TOP sellers
Main
Adjustable leg. Good cooling. Low noise level.
Low noise. Pass-through USB-connector for connecting to a laptop. Flexible angle adjustment. Laptop holders.
Product typestandstand
Max. screen size15.6 sorry, it seems there was a mistake. Could you please provide the word or abbreviation you want translated into English?15.6 sorry, it seems there was a mistake. Could you please provide the word or abbreviation you want translated into English?
Features
Active cooling
Fans2х120 mm2х140 mm
Max. RPM1200 rpm1000 rpm
Max. fan airflow46 CFM91 CFM
Noise level25 dB26 dB
Features
tilt adjustment
laptop stopper
tilt adjustment
laptop stopper
Backlightblue
USB hub
Connection to a laptopUSB AUSB A
USB А1  1  
USB A interface2.03.2 gen1
General
Power sourceuSB powereduSB powered
Stand materialmetalmetal
Folded size370х265х50 mm390x280x27.5 mm
Table top/platform size370х265 mm390x280 mm
Weight0.77 kg0.76 kg
Color
Added to E-Catalognovember 2014october 2014
When you make a purchase through links on our site, we may receive a affiliate commission.

Fans

In modern models, 1 or 2 fans are installed at a minimum, and in more advanced models this number can reach 4. It makes no sense to bet anymore, because. the area of the cooling system in this case may be larger than the area of the bottom surface of even the largest laptop. The more fans provided, the more intense the heat removal and the higher the efficiency of the cooling system (ceteris paribus, of course). On the other hand, the noise level increases noticeably, and there are “multi-fan” stands, respectively.

The diameter of the fans also plays an important role. The larger the fan, the more advanced it is considered: a large diameter allows you to create an intense airflow at relatively low speeds, which reduces the noise level compared to smaller options. On the other hand, the large size also affects the cost accordingly.

Max. RPM

The highest rotational speed of the fans provided in the active cooling system of the stand (see above).

Rotation speed is one of the parameters that directly affects efficiency: the faster the fan, the more powerful airflow it creates and the more heat is removed. At the same time, only fans of the same diameter can be directly compared by speed. In addition, high rotation speed increases the noise level; therefore, comparatively slow but large fans are considered more advanced than small and fast ones with the same performance (see "Airflow").

Max. fan airflow

The maximum airflow that a cooling fan can create; measured in CFM — cubic feet per minute.

The higher the CFM number, the more efficient the fan.

Noise level

The maximum noise level produced by the stand during operation. This parameter is relevant only for models equipped with active cooling (see above) — in fact, this function is the only source of noise.

The lower this indicator, the more comfortable the use of the stand will be and the better it will be suitable for situations in which silence is important (for example, for working late at night when others are sleeping). At the same time, even in the loudest models, it usually does not exceed 40 dB — this is comparable to the noise of leaves on a tree in a light breeze; and cooling systems in many laptops can make more noise. Therefore, paying close attention to quiet laptop stands is only worth it if you are using an extremely quiet laptop and do not want to lose this advantage.

Backlight

The presence of a lighting system in the design of the stand. Usually, this function is purely decorative: it does not affect the functionality, but it gives the product a stylish appearance.

The color of the backlight will be useful for those who want to match the stand with the design of the laptop or the decor of the computer desk.

Note that the ability to change the color is usually not provided in this case. So if several options are specified in the specifications, such as blue/green/red, it means that this model is produced in several versions, differing in backlight color.

USB A interface

The USB port interface allows you to understand what speed the connectors have when connecting drives to them. So USB 2.0 is considered the most traditional option — an already outdated format, which nevertheless easily handles with connecting a mouse, adapters (Bluetooth, Wi-Fi) and other peripherals. Its transmission speed is up to 480 Mbps, which is not enough in today's realities. The more advanced USB 3.2 gen1 has a similar connector format with improved bandwidth — up to 4.8 Gbps.

Folded size

Dimensions of the stand when folded. First of all, the convenience of transportation depends on this: if you plan to carry the product along with a laptop, you should pay attention to ensuring that the bag (case, backpack ...) has the right amount of space.

Note that the height of many models in the folded state is rather small, so manufacturers may not indicate it in the characteristics, limited only by the length and width.

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.
Crown CMLS-940 often compared
Deepcool U-Pal often compared