LENOVO IdeaCentre K450 Core i5-4430 3.0GHz 1TB 8GB DVD-RW WINDOWS 8 64-BIT WIFI Processor: Intel Core i5-4430 3.0 GHz Processor (4 cores / 4 threads, 6M Cache); Memory: 8GB DDR3 Installed; Operating System: Windows 8, 64-bit, Installed Hard Drive: 1TB 7200RPM SATA; Optical Drive: CD/DVD-RW Super Multi Combo ODD; Graphics: Integrated Intel HD Graphics, one VGA connector, one HDMI connector, HDCP-compliant Audio: High Denition (HD) audio; Communications: Ethernet: Realtek RTL 8168 PCIe Gigabit Ethernet Controller Wireless: 11b/g/n wireless, PCIe Half Mini Card, Realtek RTL8188E Ports: Front Ports: Two USB 3.0(one port always on charging port), One microphone (3.5mm), One headphone (3.5mm) Rear Ports: Two USB 2.0, Two USB 3.0, ethernet (RJ-45), monitor (VGA, HDMI), Line-in (3.5mm), line-out (3.5mm), microphone-in (3.5mm), Card Reader: (SD / SDHC / MMC / MS / MMC+ / MS PRO/ CFI/II/MD); USM Portable Disk: Hard disk dock only, supports SATA Universal Storage Module (USM) standard