Review on SNANSHI 4 In 1 USB C Card Reader: Simultaneously Read 4 SD Cards At 5Gbps Speed by Jim Bijelic

I got this a few months ago and tried it then. It did not work. My wife broke her foot and our lives went into a new direction - I didn't have time to play with it and she was focused on other things. She's getting better so I asked her to try it - she's the technical one in the house due to her work. She has now tried it on 3 computers and none of them work. We have MAC products for personal use - which the product page and box say it is compatible with, but she can't get it to work either. The computers are not even recognizing the system from this reader. As far as we are concerned, it's useless. Disappointed too - I have several cards I was hoping to back up and can't with this.