It is possible to add High Speed eSATA ports to all of the following Macs:
Powermac G4 and G5 Series Mac Pro Macbook Pro
Powermac G4 & G5 with Available PCI Slot:4 Port PCI-X Card: ...
What are port multipliers?
Port multipliers are silicon-based devices that allow a single Serial ATA port to communicate with multiple drives.
Where are they used?
Port multipliers typicall...
How Do I Add eSATA to My Mac?
It is possible to add High Speed eSATA ports to all of the following Macs: Powermac G4 and G5 Series Mac Pro Macbook Pro Powermac G4 & G5 with Available PCI Slot:4 Port PCI-X Card: ...