Emax

Hello,
I've recently bought an E4x Turbo (non-ultra) there is only one scsi port
and I need the scsi thru in order to use it with my setup, my akai s-1100
also has only one scsi port and I need to get them both on the chain
together, adding additionaly scsi card is out because I currently do not
have open slots with all my pci cards. Does anyone know which expantion card
I need for this model Emu and where I can find it?
   Thanks,
     Nicholas Faith