Writes CD-R and CD-RW discs at up to 32x speed.Writes DVD+R DL and DVD-R DL discs at up to 8x speed.Writes DVD+R and DVD-R discs at up to 18x speed.18x SuperDrive with double-layer support (DVD±R DL/DVD±RW/CD-RW).Optional Mac Pro RAID Card with 512MB cache and 72-hour cache battery backup 7.
512GB solid-state drive, Serial ATA 3Gb/s.1TB or 2TB hard drives, Serial ATA 3Gb/s, 7200 rpm, 32MB cache.Up to 8TB of internal storage 6 in bays 1 through 4 using hard drives or solid-state drives in the following capacities:.Four 3.5-inch cable-free, direct-attach drive bays with built-in independent 3Gb/s Serial ATA channels four internal drive carriers included.300W combined maximum for all PCI Express slots.All slots provide mechanical support for 16-lane cards.Three open full-length PCI Express expansion slots 5.Maximum operating altitude: 10,000 feet.Relative humidity: 5% to 95% noncondensing.Operating temperature: 50° to 95° F (10° to 35° C).Current: Maximum of 12A (low-voltage range) or 5A (high-voltage range).Line voltage: 100-120V AC or 200-240V AC (wide-range power supply input voltage).L pAm is the mean A-weighted sound pressure level measured at the operator position (rounded to the nearest dB).L WAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B).
Option to install two ATI Radeon HD 5770 cards.ATI Radeon HD 5870 with 1GB of GDDR5 memory, PCI Express 2.0, two Mini DisplayPort outputs, and one dual-link DVI port.ATI Radeon HD 5770 with 1GB of GDDR5 memory, PCI Express 2.0, two Mini DisplayPort outputs, and one dual-link DVI port.Double-wide, 16-lane PCI Express 2.0 graphics slot with one of the following graphics cards installed:.Multichannel audio through Mini DisplayPort.Analog stereo line-level input and output minijacks.Optical digital audio input and output TOSLINK ports.Front-panel headphone minijack and internal speaker.Five USB 2.0 ports (two on front panel, three on back panel).Four FireWire 800 ports (two on front panel, two on back panel).
Hyper-Threading technology for up to 8 virtual cores.Turbo Boost dynamic performance up to 3.06GHz.8MB of fully shared 元 cache per processor.One 2.8GHz Quad-Core Intel Xeon W3530 “Nehalem” processor.Hyper-Threading technology for up to 16 virtual cores.Turbo Boost dynamic performance up to 2.66GHz.12MB of fully shared 元 cache per processor.Two 2.4GHz Quad-Core Intel Xeon E5620 “Westmere” processors.