If were not for the flashing blue activity light, I would never know they were operating. Flashing blue light? Sounds like the OWC On-the-Go Pro. I have one and am never aware of its presence. True that OWC has flashing blue lights on most of their drives, but these were Staple-purchased USB WD drives.
On a Mac since 1984.
Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.
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