Apple Event: May 7th at 7 am PT

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

How much power is required for a SuperDrive?

I have a SuperDrive that does not draw enough power froma pwered USB hub or from the USB port on my 30" Cinema Display or from the USB port on the back of my Time Capsule. The ONLY thing I have that's powerful enough to power the SuperDrive is my MacBook Pro. The problem with that for me is that my MBP has only two USB ports - one is taken up by my Cinema Display, and the other by the powered USB hub that connects (among other things) my speakers. So if I want to watch a movie, I have to disconnect either the Cinema Display or the speakers. Bummer.


So here's my question ...


Exactly how much power does the SuperDrive require, and is there any other hub or device that will supply that much power so I can have the SuperDrive plugged in without disconnecting either the monitor or speakers?

MacBook Pro with Retina display, iOS 6.0.2

Posted on Feb 11, 2013 5:49 PM

Reply
Question marked as Best reply

Posted on Feb 11, 2013 7:19 PM

Ok, well it seems you think that if the OP goes out and exchanges his superdrive for a different one that his current hubs will suddenly start working. I am simply stating that I don't think so, I think that Apple designed the drive outside of USB spec.


Here is a link from Apple stating that Apple designs some USB devices that require more power than the USB spec: http://support.apple.com/kb/HT4049

45 replies

Jan 6, 2014 12:30 PM in response to Roger Barre

Until today I was happily using my superdrive on the 0.5A usb port of a D-Link DUB H7, I disconnected it to drill some cable access holes around my system and when I reconnected it I got this "connect to mac usb port" warning crap. The system info clearly shows that it possibly has a maximium requirement of at least 1.1A so I don't understand why I was able to use it on the 0.5A port and why it doesn't work on the 1.2A port. Why would the drive work on a usb hub below it's requirements and why would it just stop working the way it did?!


User uploaded file

Mar 21, 2015 12:56 AM in response to Roger Barre

2 solutions:


1 Using this: http://www.amazon.com/gp/product/B005NGQWL2/ref=oh_aui_search_detailpage?ie=UTF8 &psc=1

plug the drive into the usb port on the anker then reboot. When it reboots the drive will come up and stay up. If one port doesn't work try one closest to the incoming power supply.


2. Buy this http://www.amazon.com/gp/product/B0041CFFBM/ref=oh_aui_detailpage_o00_s02?ie=UTF 8&psc=1

and use it anytime without rebooting but you will need to use two ports on the anker. The actuall usb connection needs a full port but the power only end of the Y cable can go in the power only port at the right end of the Anker. Note this Y cable has two male ends for the anker and one female for the usb cable from the superdrive.


Mike

Mar 22, 2015 1:49 PM in response to davidsignal

davidsignal wrote:


Ok, well it seems you think that if the OP goes out and exchanges his superdrive for a different one that his current hubs will suddenly start working. I am simply stating that I don't think so, I think that Apple designed the drive outside of USB spec.


This is from the Apple online store technical specifications for the superdrive:

User uploaded file

Note my red box. USB2 connection. Your thinking does not conform with the facts.


Ciao.

Mar 22, 2015 3:35 PM in response to OGELTHORPE

Internals do not count, they do not have to conform to USB external bus connection standards.


I measured the power consumption of an external Superdrive, the figures are earlier in this post, the max current consumed was during spinup. 0.88 amps.


Here's the list, read the earlier post for testing instruments (if you care what was used)


Initial inrush: 0.45a

Quiescent; 0.25a

Spin up: 0.88a

Read: 0.45a

Write: 0.65a

How much power is required for a SuperDrive?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.