Hello,
I have a Micro Express and I would like to use it without the computer. MOTU recommends using a powered USB hub that draw its current from AC, so you don't need to connect it to the PC. Instead of that solution, I would prefer using a USB power supply, the same kind that those that are made to charge MP3 players. I need to how much current is required to power the Micro Express. The USB adapter that I have can support 500mA. Would it be enough ?
Thanks for your help !
MOTU Micro Express (newest version) power requirements
Moderator: James Steele
Forum rules
Discussion related to installation, configuration and use of MOTU hardware such as MIDI interfaces, audio interfaces, etc. with Windows
Discussion related to installation, configuration and use of MOTU hardware such as MIDI interfaces, audio interfaces, etc. with Windows
-
1nput0utput
- Posts: 1477
- Joined: Thu Aug 02, 2007 4:21 am
- Primary DAW OS: MacOS
- Location: USA
Re: MOTU Micro Express (newest version) power requirements
I don't think that the Micro Express requires much power. Find out how many amps a typical USB port outputs and try to match that with a power supply.
The leading cause of wrong answers is asking the wrong questions.
Re: MOTU Micro Express (newest version) power requirements
After some reading on Wikipedia, it looks like 500mA will be fine:
That means that a regular USB 2.0 port can provide a maximum of 5x 100mA = 500mAA unit load is defined as 100mA in USB 2.0 [...] A maximum of 5 unit loads can be drawn from a port in USB 2.0