So like me, you have a MacBook Air SuperDrive… It’s affordable, it’s functional, it’s sexy. If only it was usable with other Macs and PCs!
Well rejoice :) I have successfully hacked my MBA SuperDrive to work with other Macs and PCs. All you need is a $9 part (shipping extra) and a bit of soldering and you too can do this mod.
Now here’s a bit of background. The MBA SuperDrive is designed to work only with the Apple MacBook Air. How is that possible?
Some people have speculated that perhaps the MBA SuperDrive draws more than 500 mA and that the MacBook Air provides more than 500 mA via its USB port. This is not the problem. My attempt at connecting the SuperDrive to several PCs and Macs while injecting additional current using a special cable was unsuccessful…
What about drivers? I (and others) have scoured the MacBook Air system folder for additional and modified .kext files (kernel extensions) by comparing them with the ones available on other Macs – nothing.
Other people have suggested that perhaps the optical drive within the MBA SuperDrive uses special firmware. This is not the problem either. After taking apart the SuperDrive and mounting the optical drive directly into a PCs removable bay, it was recognized just fine.
This leaves the IDE to USB bridge. It’s a small circuit board that allows an IDE device like the optical drive within the MBA SuperDrive to work as a USB device. It uses firmware too – and Apple appears to have designed custom firmware for it!
There appears to be some sort of handshake happening between the MacBook Air and the IDE to USB bridge within the MBA SuperDrive. I looked into re-flashing the controller (which is a standard part) with generic firmware, but after several hours I was getting nowhere.
The alternative was of course to replace the IDE to USB bridge with another one, which is exactly what I ended up doing. The trick was to find a small enough circuit board. I was about to give up on this mod when I stumbled upon the aforementioned $9 part on a series of tubes.
The part is small enough to fit within the MBA SuperDrive, but requires removal of the daughter-board (containing a power connector, a USB connector, and several capacitors), as well as the non-ideal relocation of the 12 MHz crystal.
And the rest is history – you can figure it out from the pictures :)