Engineered for Business. The Workforce 545 brings your home office the World’s Fastest print speeds in its class, plus all the tools you need to take on any project. It boasts a 250-sheet paper tray. And, you can save on ink, with available Extra High-capacity ink cartridges. Get up to 40%less printing costs than color lasers, you can even save time with speeds of 15 ISO ppm (black) and 7.2 ISO ppm (color). Use the 30-page ADFto quickly copy, scan or fax stacks of originals. Easily share your all-in-one with built-in wired and wireless networking. Or, use Epson Connect to print from popular mobile devices.Get instant wireless printing from popular mobile devices, includes Apple AirPrint support.This powerful product is built to help you keep your business running at full speed.Compatible Operating Systems Windows: Windows 7, Vista, XP, XP x64, Mac: OS X 10.4.11, 10.5.8, 10.6.x, 10.7.x.Rated Voltage : 100 to 120 VAC.