Original universal Apple OSX 10.3 (Panther) system upgrade disk set.
System requirements:
• Mac OS X 10.1 or 10.2 already installed.
• PowerPC G3, G4, or G5 processor (min 233 MHz)
• Built-in USB
• At least 128 MB of RAM (256MB recommended, min of 96MB)
• At least 1.5 GB of available hard disk space
• CD drive