Apple Mac Pro 2.8 8CX/2X1G/320/2600XT/SD-USA Standard

Two 2.8GHz Quad-Core Intel Xeon processors. 2GB (two 1GB) of 800MHz DDR2 ECC fully buffered DIMM. 320GB Serial ATA 3Gb/s, 7200 rpm, 8MB cache hard drive. ATI Radeon HD 2600 XT 256MB (two dual-link DVI ports) PCI graphics card. Four 3.5-inch cable-free, direct-attach hard drive bays with built-in independent 3Gb/s Serial ATA channels; four internal hard drive carriers included for expansion. Communications. Two independent 10/100/1000BASE-T Ethernet (RJ-45) interfaces with support for jumbo frames. Bluetooth 2.0 + Enhanced Data Rate (EDR) up to 3Mb/s. Optional 802.11n AirPort Extreme wireless networking. Optional external Apple USB Modem (RJ-11). Optical disk drive. 16x SuperDrive with double-layer support (DVD±R DL/DVD±RW/CD-RW). Writes DVD+R and DVD-R discs at up to 16x speed. Writes DVD+R DL and DVD-R DL discs at up to 8x speed. Writes DVD+RW discs at up to 8x speed. Writes DVD-RW discs at up to 6x speed. Reads DVDs at up to 16x speed. Writes CD-R and C