Acer Aspire 17.3 Inch Laptop with Intel Quad-Core up to 2.66GHz Processor and 4GB RAM,500GB Hard Drive,DVD-RW Optical Drive,Windows 8.1 (64-bit) (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90 day warranty. Intel Pentium N3540 quad-core processor up to 2.66GHz 17.3 Inch LED Backliting CineCrystal widescreen display with HD-quality resolution (1600x900) 4GB DDR3L SDRAM system memory, 500GB hard drive, DVD-RW optical drive,Bluetooth, Intel HD Graphics Windows 8.1 operating system, upgradable to the new Windows 10