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Refurbished: HP Z420 Workstation Computer 8-Core E5-2680 upto 3.5GHz, 64GB, 500GB SSD, Nvidia Quadro 4000 2GB, 2 Monitor Support, WIFI, Bluetooth, DVD-RW, Windows 10 Pro 64-bit - Newegg.com,

Amazon.com: HP Z420 Workstation, Quad Core Xeon CPU upto 3.8GHz CPU, 16GB DDR3 RAM, New 240GB SSD & New 1TB HDD, Windows 10 Pro, USB 3.0, Nvidia