Processors >>> Dual 3.46GHz Intel Xeon Processors (12 Total Cores) Two independent 10/100/1000BASE-T Ethernet (RJ-45) interfaces with support for jumbo frames Bluetooth 2.1 + Enhanced Data Rate (EDR) Wireless Technology AirPort Extreme 802.11n Wi-Fi wireless networking ; IEEE 802.11a/b/g compatible Optical Drive: >>> 18x SuperDrive (DVD±R DL/DVD±RW/CD-RW) Writes DVD+R DL and DVD-R DL discs at up to 8x speed One open optical drive bay for optional second SuperDrive Four FireWire 800 ports (two on front panel, two on back panel) Five USB 2.0 ports (two on front panel, three on back panel) Front-panel headphone minijack and internal speaker Optical digital audio input and output TOSLINK ports Analog stereo line-level input and output minijacks All slots provide mechanical support for 16-lane