Hi, I've been unable to find an interface that fits this bill. I'm hoping that either someone can recommend an interface that fits the bill or definitively tell me that one does not exist. I'm looking for either a PCI Express or Firewire interface that has AT LEAST 16 channels in and out (preferably 24) of lightpipe (TOSLINK) I/O that works in Linux as I'm wondering if it's possible to use an 02R96 with one of the new Mac Pros (which do not have any standard PCI slots). They come with TOSLINK I/O but it's only one port in and out and I imagine they probably aren't working in Linux yet. Thanks, Rich(ard) -- Richard Edward Horner Composer Electric Guitar Virtuoso 206.856.2808 rich@xxxxxxxxxxxxxx http://richhorner.com - updated June 8th