HP Z820 Workstation 1 x Intel Xeon E5 2697 v2 Dodeca core 12 Core 2.70 GHz 16 GB DDR3 SDRAM 256 GB SSD Windows 7 Professional 64 bit upgradable to Windows 8 Pro Convertible Mini tower - Office Depot
HP Z440 ZE3.5 1TB 16G W8.1P64 DG W7P64 WS, Intel Xeon E5-1620v3 3.5 10M 2133 4C, 1TB 7200 RPM SATA, 16GB DDR4-2133 (2x8GB), DVD RW SM, W8.1 Pro 64 DG W7 Pro
Lenovo ThinkStation S30 4352H7U Workstation 1 x Intel Xeon E5 1650 v2 Hexa core 6 Core 3.50 GHz 8 GB DDR3 SDRAM 300 GB HDD Windows 7 Professional 64 bit upgradable to Windows 8 Pro Tower - Office Depot
HP Z440 ZE3.5 1TB 16G W8.1P64 DG W7P64 WS, Intel Xeon E5-1620v3 3.5 10M 2133 4C, 1TB 7200 RPM SATA, 16GB DDR4-2133 (2x8GB), DVD RW SM, W8.1 Pro 64 DG W7 Pro
The Intel Xeon W Review: W-2195, W-2155, W-2123, W-2104 and W-2102 Tested