The Apple manufactured Mac Pro is a sophisticated personal computer based on Intel chipsets and Xenon microprocessors. The original Mac Pro was announced in August 7th, 2006 http://guides.macrumors.com/Mac_Pro and Apple unveiled an updated Mac Pro model in March 03, 2009.http://buyersguide.macrumors.com/

Processor

• Quad-Core: 2.66GHz Quad-Core Intel Xeon "Nehalem" processor
• 8MB shared L3 cache
• 8 core Two 2.26GHz Quad-Core Intel Xeon "Nehalem" processors
• 8MB shared L3 cache per processor

Memory

• Quad-Core: 3GB (three 1GB) memory
• 8 core: 6GB (six 1GB) memory

Hard drive

• 640GB Serial ATA (3Gb/s), 7200 rpm

Graphics

• NVIDIA GeForce GT 120 with 512MB of GDDR3 memory with Mini DisplayPort and dual-link DVI video output

Optical drive

• 18x double-layer SuperDrive (DVD±R DL/DVD±RW/CD-RW)

PCI Express expansion

• Three open full-length PCI Express 2.0 expansion slots with mechanical support for 16-lane cards; 300W combined maximum for all PCI Express slots

Ports

• Five USB 2.0 ports on Mac Pro (two on front, three on back)
• Two USB 2.0 ports on keyboard
• Four FireWire 800 ports (two on front, two on back)

Communications

• Built-in dual 10/100/1000BASE-T (Gigabit) Ethernet
• Built-in Bluetooth 2.1 + EDR (Enhanced Data Rate)

Audio

• Front-panel headphone minijack and speaker
• Optical digital audio input and output TOSLINK ports
• Analog stereo line-level input and output minijacks

Included accessories

• Apple Keyboard with Numeric Keypad and Apple Mouse, USB keyboard extension cable