FireWire 800 Pro ExpressCard/34
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FAQ (5)
IDArticle TitlePost Date
108 FireWire 800 ExpressCard/34 will not see a device on a MacBook Pro under Mac OS X Version 10.5+.Dec-21-11
574 My Camera and hard drive don't work together. Why not?Apr-03-23
Applies to theThe Yin-Yang FireWire hub or a 2-port FireWire 800 ExpressCard/34.

Some cameras, notably older Canon cameras, are not compatible with other FireWire devices that include a FireWire hub. Note that hubs are built into most FireWire hard drives with 2- or 3- FireWire ports. The result is that only one device may be seen by the computer. There is an old forum on this issue here: http://www.dvinfo.net/forum/canon-gl-series-dv-camcorders/49843-canons-official-word-their-firewire-issues.html
You may always connect two FireWire hard drives of any kind without a problem. You may connect a cranky camera plus a FireWire 800 drive that has only a single FireWire 800 port without a problem.

April 3, 2023
 
628 Why doesn't my Sonnet ExpressCard/34 card work in the Echo ExpressCard/34 Thunderbolt Adapter? It's listed as compatible!Aug-11-17
634 Do FireWire ExpressCard/34 cards support bus-powered devices?Dec-21-11
778 I have a 17" MacBook Pro 6,1 and my ExpressCard does not work after upgrading to Mavericks.Dec-30-13