Original owner machine that was used principally for administrative work. It is in like new condition and has operated perfectly since it was delivered.
Mac Pro 3,1
8 Intel Xeon 2.8GHz cores (2 x 2.8GHz Quad-Core; 64-bit architecture)
16GB DDR2 ECC 800MHz RAM (max is 32GB)
NVIDIA GeForce 8800GT (512MB GDDR3 VRAM - supports 2 dual-link DVI)
2 SuperDrives (DVD-RW Pioneer DVR-112D and NEC ND-3520A)
2 Gigabit Ethernet ports
2 FireWire 800, 2 FireWire 400, and 5 USB ports
Bluetooth
Digital Audio In and Out
Mac OS X 10.9.3 Mavericks installed
4 Drive Bays:
HD1 - 320 GB Seagate
HD2 - 400 GB Seagate
HD3 - 750 GB Seagate
HD4 - 750 GB Seagate
We also have an Apple 20" display and several 750GB and 1TB external USB3 drives for sale (that were used for content backup).