Depending on the position of the computer's USB slot it's quite difficult (at least uncomfortable) to enter the PIN.
I'd prefer a PIN-free usage of all / some slots .. entering one part of the password (begin or end) manually and press the slot of OnlyKey before/afterwards.
i'd suggest an PIN option per slot
automatic direct unlock at start, when all slots are usable without the PIN.
no LED at startup - until a slot, requiring a PIN, is touched
after touching a slot, requiring a PIN, signal Lock state with red LED
and await PIN within some seconds
Depending on the position of the computer's USB slot it's quite difficult (at least uncomfortable) to enter the PIN. I'd prefer a PIN-free usage of all / some slots .. entering one part of the password (begin or end) manually and press the slot of OnlyKey before/afterwards.