Firewire? 800 to 400?

I bought a iMac several weeks ago and I want to transfer data from my Macbook to the iMac, do I need the 9 pin to 4 pin cable? I just want to make sure I purchase correct cable.
Thanks
Christopher
Message was edited by: iCrizzo

Depends which MacBook. First check the MacBook for the FW speed in System Profiler. Click the Apple icon>About this Mac>MoreInfo>Hardware>Firewire. But the new iMac is definitely FW 800.
Also, highly recommended: use Setup Assistant on the first boot of the new Mac and select everything to move over.
Your profile lists +"27" iMac MacBook mid-2010"+ which sounds like a very weird hybrid machine.
Message was edited by: WZZZ

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