Lenovo ThinkCentre M73 Mini Tower Desktop PC: Key Features and Benefits: Intel Core i3-4130 Dual-Core processor 3.40GHz, 3MB Cache 4GB DDR3 SDRAM system memory (expandable to 16GB) Gives you the power to handle most power-hungry applications and tons of multimedia work 500GB SATA hard drive Store 333,000 photos, 142,000 songs or 263 hours of HD video and more DVD+/-RW drive Watch movies and read and write CDs and DVDs in multiple formats 10/100/1000 Gigabit Ethernet Connect to a broadband modem with wired Ethernet Intel HD 4400 Graphics With VGA and DisplayPort capabilities Additional Features: 4 x USB 2.0 ports, 2 x USB 3.0 ports, 1 x VGA port, 1 x DisplayPort, 1 x Serial, 2 x PS/2 ports, 2 x Line-in, 1 x headphone jack, 2 x microphone jack, 1 x RJ-45 Ethernet port 2 x PCI Express (x1) expansion slots, 1 x PCI Express (x16) expansion slot, 1 x 5.25" external bay, 2 x 3.5" external bays 20.7 lbs, 6.3" x 16.6" x 15.3" Software: Genuine Microsoft Windows 7 Professional 64-Bit Edition (To learn more about the features of Windows 7, click here ) Backup and Restore options built into Windows allow you to create safety copies of your most important personal files, so you're always prepared for the worst Support and Warranty: 1-year limited hardware warranty; 24/7 technical assistance available online or toll-free by phone Restore discs are not included. We recommend you use the installed software to create your own restore and backup DVD the first week you use the computer. What's In The Box: Power cord USB keyboard USB optical mouse Quick Start Guide To see the manufacturer's specifications for this product, click here. To see a list of our PC Accessories, click here. Trade in your used computer and electronics for more cash to spend at Walmart. Good for your wallet and the environment - click here.