Things You'll Need
Instructions
USB Hard Drive
Turn your PS2 on and let it load.
Connect your external hard drive to the PS2 using the USB cord. Give the PS2 time to load the information from the hard drive.
If your hard drive is compatible with the PS2 you will be able to access it under the "Storage Devices" menu.
PS2 Network Adapter
Purchase a PS2 network adapter. It should be available at any electronics supply store.
Align the power ports and connectors of the hard drive with the slots on the network adapter. Connect the hard drive to the network adapter.
Slide the hard drive into the expansion bay in the back of the PS2. Push it in until the network adapter port connects with the PS2.
Screw in the network adapter to the back of the PS2.
Turn the PS2 on and locate the hard drive under the "Storage Devices" list.