This has been a problem that has boggled me for quite some time.
My Extreme USB 3.0 flashdrive is totally not detectable by the USB3 ports on either my desktop (W7/W10) (front panel) or personal laptop (W7) or even my work laptop (W10).
The little blue light comes on when it’s plugged in but that’s all it does. No Windows device prompt or anything. Nothing in Disk Management/Device Manager (as far as I can tell)/File Explorer.
The only way I can get it to be detected and work is to connect it to an external (unpowered) USB 2.0 hub and then plug the hub to any port. The flashdrive itself otherwise works perfectly fine. Other USB3 flashdrives from other brands work fine on the same ports.
Nothing wrong with my various systems or ports either since other peripherals have zero problems with them.