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Reviews (28)

Nov 27, 2018
Enhancing airflow with architectual rulers
Most laptop computers have cooling ducts on the bottom. Placing the laptop flat on a surface can impede airflow and burn out the internals due to lack of adequate cooling. I put these triangular rulers underneath the back of laptops to enhance airflow (laptops used to come with fold-down tabs designed to prop up the back end - many years ago). These rulers work great for this specific purpose, and I hand them out to my IT colleagues as gifts.

Oct 12, 2023
Economical and well-made battery storage device.
The EB3A is an inexpensive product that stores current and provides a variety of electrical voltages. I use it on a small sailboat and it provides (5 vlt for charging phones, 12 vlt for pumps and running lights, and 120 AC for power tools). I have charged it with the car charger, the AC and a 100 watt solar panel. It has a built in MPPT mechanism (very good) to control the solar charger. It is smaller than I expected and fits nicely on the boat and provides enough current for weekend/overnight sails.

Aug 09, 2021
Fan review
It functions well. It is not a good value - it's more expensive than I wanted to pay - but it's the only one that had 4 connectors and would work with the Dell motherboard (the previous fan burnt out the bearing and made a terrible noise).