HP Z2 Tower G4 Workstation (3MC16EA) - 7th Generation Intel Core i9-7900X Processor (13.75M Cache, 3.30 GHz, up to 4.30 GHz, 10 cores), 16GB DDR4 2666MHz RAM (2 x 8GB, 1 slot free, 64GB Max), 512GB SATA Solid State Drive, DVD-RW Drive, Integrated Realtek HD ALC221 Audio, Integrated Intel I219-LM PCIe Gigabit Ethernet, Connectivity: Front: 1 x Headset, 4 x USB 3.1 (1 charging), 2 x USB 3.1 Type-C, Rear: 6 x USB 3.1 Gen 1, 2 x RJ-45 (1 GbE), 1 x Audio Line-out, 1 x Audio Line-in, 2 x PS/2, Includes HP USB Slim Keyboard and Mouse Combo, Windows 10 Pro 64-Bit