Lenovo ThinkStation P520c 30BX - Tower - 1 x Xeon W-2155 / 3.3 GHz - RAM 16 GB - SSD 512 GB - TCG Opal Encryption - DVD-Writer - Quadro P4000 - GigE - Win 7 Pro 64-bit (includes Win 10 Pro 64-bit License) - monitor: none - keyboard: US - TopSeller