You can find many laptop cooling plates and pads for your lap. But LapGuard by Digital Innovation has a unique feature: radiation-shielding technology. It claims to reflect Wi-Fi radiation and conduct heat away from reproductive organs. LapGuard does this with its grounded metal plate and two fans powered by a USB connection. The 4290500 model has a dial for controlling fan speed and is wedge-shaped. On the other hand, the flat and lighter 4290400 model retains all features except for the variable fan speed. Both models of LapGuard have quiet fans. The fans did not eat up too much juice from my laptop. We found the variable fan speed of the 4290500 model to be useful: Many laptops heat up less when using software that utilizes less CPU. In those instances, the user can reduce LapGuard's fan speed. That will also save the laptop’s battery power. However, if a user is playing CPU intensive games or software, then one can increase the fan speed. In either case, both models of LapGuard were able to keep a Lenovo W520 laptop and my lap cool. At the same time, it was comforting to know that the Wi-Fi radiation was reflected away from my reproductive organs! Both models of the DI LapGuard are large enough to accommodate up to 17” laptops. My 17” Acer laptop fits perfectly on both of them. Both models of the LapGuard fit nicely on my lap and felt comfortable, thanks to the heavy padding underneath its grounded metal plate.
LapGuard model 4290500 is wedge shaped, has a dial for changing fan speed, and retractable USB cable
LapGuard model 4290500 includes a retractable USB cable. LapGuard 4290400 does not have a retractable USB cable; however, it has a slot for keeping the USB cable organized. It is located below the padding. The LapGuard 4290500 has more features than LapGuard 42090400. However, the 4290400 model is more compact, lighter, and less expensive. For prolonged use by road warriors and such, we recommend 4290500. The LapGuard 4290500 is available for about $50 while the LapGuard 4290400 is available for around $40.
LapGuard model 4290500 is more compact and lighter
Patent-pending technology substantially reduces exposure to harmful laptop radiation and heat
Retractable (Only on 4290500) USB cable provides quick and easy storage
Dual whisper-quiet fans help keep laptop cool for maximum performance and longevity
Variable-speed fan control (Only on 4290500)
USB powered for convenience
Wedge-shaped and padded for comfort and easy typing (Only on 4290500)
System Requirements: Available USB port
Includes: LapGuard, USB power cable and Quick Start Guide