As I am switching to mirrorless, this card reader offers the two slots I will need moving forward. My first card reader was for my laptop and I love the magnet and the adhesive metal plate that are part of the package. I placed the metal plate on the back of my laptop case and find that is it where I need it when I need it.
I made the decision to purchase a second card reader for my desktop so that I am not constantly switching. Again the magnet on the card reader came in handy as I can leave the card reader on the top of the computer case where it is easily accessible.
USB 3.2 is fast! I have used both the USB-C to C and the USB-A to C cables included with the reader and see the fast transfer speeds with both.
In my recent test with the card reader connected to my desktop, I set up the following: I selected 10 identical RAW images ranging from 40-65MB to be transferred from the SD and CFExpress cards to different folders on the same SSD internal drive. I preselected the 10 files for copying and started the SD card transfer first. In the short amount of time to took me to move my mouse to start the CFE card transfer, the SD card was finished and in less than 1 second after the SD card finished, the CFE was also finished.
I have found that if the images are imported into editing software like Lightroom or On1, the speed is reduced due to the editing software's ability to import large files. My suggestion for faster transfer of a large full card(s), copy the images to your hard drive directly and then import the images into your editing software.
Now, if they only made a card reader with SD, CFExpress, and Compact Flash in one, I could have a single card reader for my Canon 5D's and my new R5.