Originally designed for heavy use in the corporate environment this Lenovo 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: Lenovo ThinkCentre M900 Desktop Computer Processor: Intel i5 Quad Core Gen 6 RAM Installed: 16GB Hard Drive: 2TB HDD Operating System: Windows 10 Professional 64 Bit Video Ports: VGA Port - 1 Display Port - 2 DVI Video Port - Not Installed HDMI Port - 0 Network: Wireless Networking - USB WiFi Adapter Bluetooth - Not Installed Additional Ports: USB 2.0 - 2 USB 3.0 - 8 * This computer will arrive at your doorstep ready to use right out of the box with all necessary cables included.