I need a computer to run a program script continuously so whenever something happens, I will be instantly alerted. I had a desktop and a laptop already but I really don't want to run a desktop or laptop all the time with humming noise. I came across this fanless desktop. I was a little bit dubious at the beginning what I can do. But after reading all the reviews, I decided to give it a try and it totally beat my expectation.what I like it most are:1. It has three USB ports which I think is the minimum to have.2. It can access  my 8tb external hard drive. I don't that is the upper limit but at least 8tb is not a problem.3. It is fanless and absolutely silent and I believe it is very energy efficient also w/o the fan.4. It has external SD slot which means I can use my SD card for more storage if necessary.5. And it is so portable that I can easily put it into my pocket.All in all, I really love it. Really.