After buying a memory expansion for my Amiga 500 back in the day, it came with a led, showing me when it was being used. I always enjoyed having such visual indicators. In the early days of Windows and computer cases there were still visual indicators (or 'blinkenlights
') but those were already more generalized. Nowadays it seems to me that even these generic indicators are phased out.
Network related equipment still makes use of the 'blinkenlights' but that stuff is usually hidden away in server rooms and relegated to the back of computers. Thanks for bringing these glowing USB lights to my attention.