A3/A4 Printer: A4 - Speed: B&W: A4: 20ppm, Color: Not support - Duplex: No, Dpi: 600 x 600 dpi - RAM: 16 MB not expandable, Fax: No - USB: Hi-Speed USB 2.0 , AirPrint: Not support - Tray: Input: 150-sheet input tray Output: 100-sheet output bin - Warrenty:1-year on-site warranty