This is a solid little business model Dell Optiplex 7050 Desktop PC. It has a 3.4GHz 7th Generation Intel Quad Core i5-7500 Processor- Choose between a Hard Drive or Solid State Drive and with 8GB or 16GB DDR4 RAM. Has 10 USB Ports (5 are USB 3.0 and 1 USB-c). VGA, HDMI and Dual DisPlayPorts gives you 4 video outputs on the motherboard. Includes Virus Protection

Options- 

Operating System-  Windows 10 Pro 64 bit- Let me know if you want Windows 7, which is not supported anymore

RAM- 8GB DDR3 or 16GB DDR3 ($50 for Upgrade)

Storage- 500GB-1TB Hard Drive or 128GB-500GB Solid State Drive

*a Solid State Drive is much faster than a standard Hard Drive