Does The Mytek 192 DSD DAC Need Power From The Computer's USB Port?

[ignatz22]

Would anyone know if when using the USB 2.0 ports on my Windows PC and Mytek DAC, does the Mytek:

 

1- Require constant power from the computer's USB port.

2- Does not require any power from the computer's USB port. That is the Mytek's USB 2.0 input is self powered.

3- Only require power from the computer's USB port to establish a handshake, and does not need the power after the handshake has been established.

 

TIA