The Mac Pro "Eight Core" 3.0, which identifies itself via a unique MacPro2,1 model identifier (2138), is a custom configuration of the original Mac Pro. It is powered by two 3 GHz Quad Core Xeon X5365 (Clovertown) processors with 8 MB of dedicated level 2 cache per processor, a 128-bit SSE3 vector engine, and 1.33 GHz "64-bit dual independent frontside buses."

When I purchased this machine new in the summer of 2007, it came with 2GB of 667 MHz DDR2 ECC "fully-buffered" FB-DIMM memory (with a heatsink design that is a bit different from generic FB-DIMMs). I have since upgraded the RAM several times, and it now sports the machine's supposed maximum of 64GB (visible to OSX but not Windows, due to the firmware being not fully 64 bit in this model). The storage in this machine is a 1TB hard drive (7200 RPM). SSDs are a very worthwhile upgrade for this machine, either for the SATA bus or plugged into PCIe expansion cards.

Expansion includes two external 5.25" "optical" bays (one occupied by default), four internal 3.5" "cable-free, direct attach" hard drive bays (three free by default), and four PCIe slots (three free with one single-width graphics card installed). Ports include dual Gigabit Ethernet, five USB 2.0 ports, two Firewire "400" ports, two Firewire "800" ports, and optical digital audio in/out, among others. AirPort Extreme (802.11g/n), Bluetooth 2.0+EDR are included on this machine as configured by me. The optical drive was replaced by me at one point, and is not the factory unit, though it works and boots fine.

This Apple Mac Pro desktop is still to this day a powerhouse for office, workstation, and engineering coding use. While there are some hardware and software limitations, it is still a very flexible and upgradable machine for use with OS X, Windows, or Linux. The graphics have been updated to an ATI Radeon HD 5770 allowing for multi-head output (three displays) from a single card. The installed OSes are OS X 10.7 "Lion" the last version to run on the hardware without any sort of software trickery. I had previously been running OS X 10.11 El Capitan on the machine, which is not difficult to do if you're willing to get your hands dirty with bootloaders customization. I was also dual-booting with a Windows 10 installation which is reasonably up to date (as of when I stopped using the machine). Win10 only recognizes 32GB of RAM due to the 32 bit firmware weirdness endemic to this model.

Included with this auction are the original manuals (pictured) and box (not pictured, provided only for the purposes of shipping due to the poor cosmetic condition). Not included are the monitor that the screenshots were taken on, and the original mouse and keyboard.

PLEASE NOTE: if you have a favorite shipping service or are international: contact me and I am willing to ship via other methods than the one listed. However, it will most likely be higher in cost!