Review on SIENOC Steel Filter Blanking Screws Computer Components by Rudy Santos

I might give this a lower rating as they (Sienoc) came with a small hole in the packaging and screens. I don't think it was worth sending back. The magnetic strips are a bit weaker compared to the Thermaltake screen I already had. have better air circulation. This didn't happen as I tested both devices with a sensitive anemometer. I took a microscopic picture and found out why: although the size of the holes is very similar (Thermaltake was slightly larger), Sienoc has more holes in the same area due to the size of the string filter - about a 23 to 16 ratio (Sienoc to Thermaltake ) . This is about 40% more open area for Sienoc. Please note that Thermaltake's screen is a few years old and its design may have changed since then. So basically you will be filtering the same size particles with both screens, but you will get better airflow. with a thinner screen.