Drive spins even though device powered off - is this normal?

simple question i’m sure, however any ideas why an external drive (connected via front usb on the WDTV box) is still spinning even when the WDTV is powered off (via remote control)

drive had been connected for couple of hours - so maybe still indexing? - (nearly full Tbyte drive)

not sure…

any thoughts most welcome, thanks.

It’s because it’s not powered off.   You’re putting the WDTV in “Standby.”

To power it off, EJECT the drive, then hold the power button for 3 seconds.