Acer Desktop Computer Intel Celeron 1.6GHz, 4GB RAM, 500GB, Windows 7 Pro - PC (Certified Refurbished) This Certified Refurbished product is certified factory refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty. This Windows 7 machine comes with 6 USB Ports, 1 DVI Port and an HDMI Port so you can plug and play all your accessories. Experience amazing graphics with the Intel HD Graphics Sporting 4 GB of DDR3 SDRAM and 500 GB Storage Space so you will have plenty of memory to accelerate your tasks. With blazing fast Intel Celeron 1017U Dual-Core 1.60 GHz Processor