Simply business. Get the performance you need at a value price. Introducing the HP Pro 3500 Microtower Business PC - powerful, expandable and modern from the inside out. Features Windows 8 Pro or other operating systems available A tool for success Perform to the max with the latest 2nd and 3rd generation Intel Core processors. Bring presentations to the next level with integrated Intel HD Graphics for high-caliber visuals. Take advantage of customizable expansion options with three PCI Express x1 and one PCI Express x16 slot. Connect to a variety of well-placed ports, including six USB 2.0 ports (2 front, 4 rear), RJ-45 Ethernet, audio line in/line out and microphone and headphone. Improve productivity with independent dual-monitor support with standard VGA and DVI-D video outputs. Essential security Protect your information and identity with HP ProtectTools, a comprehensive portfolio of security features built into the hardware and software. Permanently erase sensitive information with HP Disk Sanitizer and File Sanitizer. Encrypt data on your hard drive as unreadable to unauthorized users with Drive Encryption, and store passwords to protected websites and applications with Password Manager. We're right behind you Built to last. Each HP business PC goes through a multi-tiered testing process of over 115,000 hours to help ensure a lasting investment. Rely on award-winning service and support with a standard, 1-year limited warranty from HP. Additional coverage is available through HP Care Pack Services.