Dell Inspiron I3647-1524BK Desktop (Intel Celeron G1820 2.7GHz Processor, 4GB DDR3 RAM, 500GB HDD, Windows 7 Professional 64-Bit) (Discontinued by Manufacturer) Intel Celeron-G1840 Processor 2.7 GHz (cache) 4GB DDR3 500 GB 7200 rpm Hard Drive Optical Drive: DVDRW, Memory Speed: DDR3 1600 Front USB: 2 x USB 2.0