Apple iMac G5 PowerPC G5 2.0GHz 512MB 160GB DVD&plusmn;RW DL 17" AirPort OS X Apple iMac G5 PowerPC G5 2.0 GHz All-in-One System General Features: Mac OS X 10.4 pre-installed PowerPC G5 2.0 GHz processor 667 MHz Bus Speed 160 GB hard drive 1 GB DDR SDRAM (2 GB maximum supported) Slot-loading 8x DVD RW DL SuperDrive Integrated audio ATI Radeon 9600 graphics w/128 MB DDR SDRAM 56K V.92 modem Built-in 10/100 Ethernet 802.11b/g AirPort Extreme