Dell OptiPlex 5040 Intel Core i5-6500 CPU @ 3.20GHz, 8GB RAM, 500GB SSD with Microsoft Windows 10 Professional and Microsoft Office 2010 Home & Business.
Amazon.com: Dell OptiPlex 5040 SFF Desktop Computer Intel PC Quad Core i7-6700 3.40GHz up to 4.0GHz 16GB Ram 512GB NVMe M.2 SSD Built-in WiFi & Bluetooth HDMI Wireless Keyboard and Mouse Windows