Sandisk have a problem with their usb 3 implementation. They have had this problem for at least 5 years judging by this forum.
They offered me a swap for an Ultra Flair. But I am reading that they too get too hot to touch!
I am using the Ultra Fit 64GB on a short extension lead It runs a bit slower but it won’t cook the laptop port.
I also have a 64GB Ultra Dual Drive usb 3 which is actually faster than the Ultra Fit and is tollerably hot. The much larger plastic body could be the reason?
Other brands of usb 3 flash drive dont have this heat problem. Why are Sandisk not addressing it?