Is the LED on my Mini supposed to stay on while it sleeps?

[Caliber26]

The LED light on M1 my mini stays on even while it' sleeping. Is this normal behavior?

I've also got a dongle attached to it and that, too, has an LED light that stays on while the mini is sleeping. I also noticed the dongle is always warm -- it safe to leave it plugged in 24/7?

 

[opeter]

I can only speak for my Mac mini (2014) and the LED is pulsating, like this just in white color:

Because the Mac mini is not turned off, just sleeping, It does give the USB hub electric power, so that the USB hub/dongle's LED is on is - I think - a normal behaviour.

 

[CC88]

From 2018 the led is always on. That is really annoying as you cannot tell when the machine is sleeping correctly or not.

 

[fricotin]

My 2012 slowly blinks when sleeping.

 

[Binary Wizzard]

Yeah I think Apple made a mistake by having the LED remain ON even when sleeping. Counter intuitive, if you ask me.

 

[frou]

I have a USB extension cable with a switch in it that cuts the power from the upstream USB port.

I use it to stop my mouse glowing when I put the Mac Mini to sleep.

Something like this:

 

[vddobrev]

This is yet another example where Apple saved costs. By all means this led should be off, if not pulsating when the mini sleeps. This is confusing.