HP Z620 HP Z820. HP Z820 Workstation Dual Xeon E5-2680 16-Core Turbo 3.50GHz 256GB DDR3- 4TB HDD + Nvidia Quadro 4000 2GB (FREE). HP Z820 Workstation -Max Turbo 3.50 Ghz. 4TB SAS 7.2K Enterprise 3.5" HDD ( upgrade Possible, No Extra Caddies ).
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