Oddity

So, I've been experiencing something weird. Safari has downloaded a random ZIP file twice so far. The download was made while browsing Facebook and WhatsApp respectively. The ZIP file is called 2018-2019.zip and contains an alias. I did not open the alias file, however, the properties window...

Okay. So I have some broken laptops that I decided to take apart. I took out the DVD drive (which I was gonna use as an external DVD drive), and there were the SATA connections. There was a standard SATA data cable slot, but then there was this smaller, SATA looking connector.