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).Two independent 10/100/1000BASE-T Ethernet (RJ-45) interfaces with support for jumbo framesĭECLARED NOISE EMISSIONS in accordance with ISO 9296.Bluetooth 2.1 + Enhanced Data Rate (EDR) wireless technology.

Built-in AirPort Extreme 802.11n Wi-Fi wireless networking 3 IEEE 802.11a/b/g compatible.Four memory slots supporting up to 32GB of main memory using 1GB, 2GB, 4GB, or 8GB DIMMs.2.8GHz and 3.2GHz systems: 1066MHz DDR3 ECC SDRAM.Eight memory slots (four per processor) supporting up to 64GB of main memory using 1GB, 2GB, 4GB, or 8GB DIMMs.2.66GHz and 2.93GHz systems: 1333MHz DDR3 ECC SDRAM.VGA output using Mini DisplayPort to VGA Adapter or DVI to VGA Display Adapter (optional).Additional dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (optional).Additional DVI output using Mini DisplayPort to DVI Adapter (optional).Support for analog resolutions up to 2048 by 1536 pixels.Support for digital resolutions up to 2560 by 1600 pixels.

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.

8 core mac pro ebay