TECKNET Laptop Cooling Pad, 12″-16″ Laptop Cooler with 2 Quiet Fans, Ergonomic Comfort Gaming Laptop Cooling Stand, Speed Adjustable Cooling Pad

Didn’t work until I tried to create a pressure chamber
Elephant in the room first – coolers that just blow air at the base of your laptop don’t work very well. To see why, flip your laptop over to look at the base. About 10% of the surface area of your laptop’s base will be vents, meaning 90% of any air blown at it will just hit a wall and go around the outside of the laptop.
And that is what happened initially with this cooling pad with my Acer gaming laptop (Predator Helios 300 model number PH315-55, RTX3080, i7-12700H) – no noticeable temperature reduction over and above just lifting the laptop off the table by the same amount as this cooler. Bah!
A bit of Googling revealed that most laptop coolers don’t work because of this reason. Any temp drop actually comes from the cooler creating more clearance at the base.
The few coolers that work seal the base of the laptop onto the cooler (via a foam seal) so that airflow cannot escape. This creates a slight high pressure around the base of the laptop, making it easier for your laptop’s fans to draw in air. This in turn creates better airflow… and cooler temps.
Worth a try.
I had some PVC door draught excluder lying about (search for it on Amazon via its ASIN – B0BXP1MDGZ). I stuck this around the edges of the cooler’s grille so it would be airtight against the Acer’s base and waddaya know, it worked!
The thing about recent CPUs is that they all run hot and will easily reach their throttle temp (for my i7, that is 92C – easily reached during gaming). With the TEkNet cooler plus my pressure chamber mod, the laptop never reaches 92C, instead topping out at about 88C.
A 4 degree change is not much, but it is enough for the laptop to maintain 100% performance without throttling, so that has to be a win.
The other thing is if you put this cooler on a flat surface, you block about half the airflow because no air comes in from the underside (airflow is now from the sides only). Raise the back by about 2cm and it works better. My RTX3080 laptop used to hit the mid 80s on the GPU, but with the draught excluder and the 2cm gap, I can leave it rendering for hours (Flux and stable diffusion AI) and it never gets past the high 60s, which is desktop level airflow. Even better that I don’t have to raise the laptop fan speed from default to do it, raising the life of the laptop, and lowering the laptop fan noise (small laptop fans make more noise than the larger fans in this cooler).
So, full marks if you are prepared to make a change or two (and less than half the price of the pressure chamber coolers – such as the KLIM Everest – if you follow my tip!). As useless as every other cooler if you are not prepared to do this.
Oh, and throttlestop is also your friend (and it is free). For laptop Intel 12 series and above, the CPU package TDP is rated for about 45W, but the chip is typically allowed to peak much higher – 130W(!), causing cores to often hit their throttle limits This is fine for most applications, but not games – as any CPU that hits its throttle limit is probably getting hot doing a lot of work managing an important game process, and throttling it momentarily causes a micro-stutter. Set the power limit to 45-55W via throttlestop to avoid these throttle-bounces.

Excellent product. Very well designed. And effectively cools down my DELL laptop. Even the fans are located close to my laptop air intake. Size is perfect for my DELL 16 inches laptop. And there is no way to block air intake. It also has an on-off switch. The best is that it takes power from your USB-A, so there is no need of any external power cord. This fact was essentially for me a MUST when I travel through Europe and power 220V outlet connections that are 100% incompatible both in plug size and voltage with USA and Canada wall power outlets 120V.

works perfectly,fans could have been set at high rpm with a speed toggle…but at this price this piece is perfect and also looks beautiful and has a very comfortable design ….and the most important thing this cooler keeps my laptop cool and that’s the bottom line…