XPS 17 Explorer does not see WD SSD when plugged into Dell DA20 adapter

@KelpFrog  Do other USB devices work when connected through that adapter?  Does the WD SSD work properly with that system when connected through some other adapter?

Thumb drives Are seen w the dell adapter. I tried using a Belkin USB-C  to USB-A  adapter cable- Same result NO See !

@KelpFrog  Sounds like it could be a problem with the SSD then. But where are you actually looking for the SSD? If you’re just looking in Windows File Explorer, check Device Manager or Disk Management. It’s possible that the disk is detected but you need to initialize it, or format a partition, or assign a drive letter.

Works fine with Asus win 10 laptop. passes self test, no errors ,recent format. Is NOT seen in disk management OR Device Manager- refresh /scan for hardware changes . . . nothing. !

@KelpFrog  Very strange.  Are you on the latest BIOS release?

Dell Update sez  no BIOs update. cmd check version = 1.7.2

Odd indeed .