Processor Intel Core i 3-4150T 3 G Hz 3MB Cache Intel Q85 Chipset Memory 4GB DDR3 PC3-12800 1600 M Hz non ECC Configuration 1 x 4GB Expandable to 32GB 4 x DIMM slot Hard Drive 500GB SATA 7200rpm Optical Drive DVD+-RW DL Software Operating System: WIN 7 Pro 64 preload/ WIN 8 COA+ Win 8 Pro RDVD Display Not Included Graphics Intel HD Audio Integrated Audio (ALC662) Input Devices Wired Keyboard & mouse Networking Ethernet controller: Intel L217LM Clarkville Power Supply 240W Single output Interfaces Front Two High Speed USB (Universal Serial Bus) 3.0 One Microphone One Headphone Back Four High Speed USB (Universal Serial Bus) 2.0 Two High Speed USB (Universal Serial Bus) 3.0 1 standard serial One integrated VGA port Two integrated Display port RJ45 One Audio Line in One Audio line out One Mic In Expansion Slot 1: Low Profile, PCIe Express 3.0 x 16 (40w max) Slot 2: Low Profile, PCIe 2.0 x 1 Slot 3: Low Profile, PCIe 2.0 x 16 (x 4 elec, 40w max) Warranty 3 Year Manufacturer Warranty