Apple Power Mac G5 Desktop M9747LL/A (Dual 2.0 GHz Power PC G5, 512 MB RAM, 160 GB Hard Drive, 16x Dual Layer SuperDrive) (Discontinued by Manufacturer) Dual 2.0 GHz PowerPC G5, 1.0 GHz per processor 512 MB expandable to 4 GB, 160 GB Hard Drive 16x Double-Layer SuperDrive, ATI Radeon 9600 with 128 MB DDR SDRAM One FireWire 800 port, two FireWire 400 ports; three USB 2.0 ports, two USB 1.1 ports; AGP 8X Pro slot Software includes Mac OS X version 10.4 Tiger, iLife, Microsoft Office 2004 for Mac Test Drive,QuickBooks New User