Blink (1) mk 2" which lights and conveys notices and actions linked with various services and applications with a colorful USB connection LED - GIGAZINE
blink(1) – the USB RGB LED notification light
GitHub - todbot/blink1mk3: Official hardware design files for blink(1) mk3 USB RGB LED by ThingM
I tried using the USB light "blink (1) mk 2" to inform you of application and various service notifications and PC status colorfully - GIGAZINE