Most of laptop cooler/chill pads are made of PLASTIC and use fans that blow air TOWARDS the laptop. What impresses me about this product is that the cooling surface is made of ALUMINUM (just like the aluminum casing used to keep portable hard drives cool) and its fans PULL/SUCK HOT AIR AWAY KINGSTON FLASH MEMORY from underneath the laptop. This method of REMOVING hot air is superior to blowing room temperature air at the laptop (it's also the same mechanism used blaptop/desktop internal fans).
MY TESTS:
I compared the latest Targus high-speed KINGSTON FLASH MEMORY chill mat (Model PA248U) to this one. After running the laptop for one hour on each, I noticed the surface of the laptop (keyboard, palm rest, touch pad, etc.) was the same in both cases (very cool). But there was a noticeable difference on left side of my laptop (where my Dell's internal fan exhausts warm air). With the Targus, there was noticeable amounts of warm air being exhausted by the laptop's internal fan. With the Antec, there was much less warm air being exhausted than the Targus. So the Antec does a superior job cooling the laptop since the laptop's internal fan was exhausting less hot air.
MINOR DETAILS:
The Antec allows you to control the speed of the fan (high or low) while the Targus is fixed, presumably at high (and is rather noisy). The Targus does have a simple push on/off switch; the Antec does not (you have to unplug it for off). The Antec's USB cord KINGSTON FLASH MEMORY is pass-through meaning Antec will NOT take us one USB slot (the Targus did not have this feature). The Antec has a very strong Blue LED light to indicate it is on (it could be helpful as an on/off indicator, but it is very annoying in low-light condition because it is very bright).
BOTTOM LINE:
Because the cooling surface is made of aluminum and because the fans work to draw hot air away from the laptop (much like your laptop's internal fan), Antec is a superior product. Also, my simple tests showed that the laptop was cooler using Antec.
