The Lenovo ThinkCentre M83 is a premium enterprise-class desktop designed for corporate users. Equipped with an Intel Core i5 processor, experience faster processing and better graphics performance. Connect to four monitors efficiently via mosaic mode2 for more comfortable conferencing or video viewing. designed specifically for the rigorous demands of large enterprises and the educational world. Processor: Intel Core i5-4570 running @ 3.2Ghz. (Quad Core for faster performance!) Graphics:‎ Integrated Intel HD 4600 GraphicsMemory: 16GB DDR3 Memory Storage: 500GB Hard Drive (HDD)Optical Drive: DVD-ROMWireless: Built-in WiFiKeyboard & Mouse: Brand New TJJ USB wired keyboard and mousePorts & Connectors: 8 USB Ports - 2 Front(USB 3.0), 6 Rear(4 USB 2.0, 2 USB 3.0), 2 DisplayPort, 1 Mic-in & 1 Headphone out (front), 1 Mic-in/Line-in & 1 Line-out(rear), 1 VGA, 1 RJ-45Operating System: Windows 10 Professional (64-bit)Package Includes: Lenovo M83 SFF Desktop Computer with NEW Keyboard, Mouse, Power cordWarranty & Technical Support: All of our Amazon Renewed computers come with a 90-day warranty and technical support to provide customers with unmatched quality and care. Please buy with confidence. If you have any problems with items please feel free to contact with us, we'll response to you within 24 hours.Buyer can contact us get a free DP to HDMI adapter.**Sometimes the computer parts maybe automatically upgrade to the next grade level due to being out of stock without informing, please consider as a gift from us.**