Dell Optiplex Desktop Business Computer PC (Intel Dual-Core Processor up to 3.0GHz, 4GB DDR3 Memory, 1TB HDD, DVD-CDRW, Windows 10 Home) (CertifiedRefurbished) This CertifiedRefurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer CertifiedRefurbished products on Amazon.com Intel Core 2 Duo processor 3.0GHz (6MB cache), 4GB DDR3 SDRAM memory (expandable to 16GB) 1TB SATA hard drive,DVD-CDRW drive, Intel Integrated Graphics 8 USB 2.0 ports, 1 VGA port, 1 DisplayPort, 1 Parallel port, 1 Ethernet port. USB keyboard & mouse Windows 10 Home Edition