Originally designed for heavy use in the corporate environment this Dell computer has been rebuilt with higher quality components than you ll find in typical off-the-shelf retail models. Specifically configured for optimal use at home or school this computer has been professionally rebuilt by a Microsoft Authorized Refurbisher (MAR). Every component is tested for full functionality to ensure years of ongoing performance and reliability. Exterior cosmetics are restored to a like-new condition with little to no visible signs of previous use. A fresh and authentic installation of Microsoft Windows 10 is performed with the new license digitally rendered in the PC for an easy and secure start upon first use. Manufacturer/Model: Dell Optiplex 990 Desktop ComputerProcessor: Intel i5 Quad Core Gen 2 RAM Installed: 4GB Hard Drive: 500GB HDD Ope System: Windows 10 Professional 64 BitVideo Ports: VGA Port - 1 Display Port - 1 DVI Video Port - Not Installed HDMI Port - 0 Network: Wireless Networking - USB WiFi Adapter Bluetooth - Not InstalledAdditional Ports: USB 2.0 - 10 USB 3.0 - Not Installed* This computer will arrive at your doorstep ready to use right out of the box with all necessary cables included.