Print Speed (Black): 25 ppm Print Speed (Color): 25 ppm Fax Speed: 33.6 kbps Scan Resolution: Up to 4,800 x 4,800 dpi Effective Resolution(Max): 9,600 x 600 dpi Technology: Print, Copy, Scan, Fax Print Language: Postscript 3, PCL5C, PCL6, PDF V1.7, SPL-C Processer 533 MHz Dual CPU Fax Memory: 6 MB Memory: 512 MB (1 GB Max) Paper Capacity: 250 sheets, 50 Multipurpose tray, 50 sheet DADF (Max Input 820 sheets) Paper Type: Plain, Thin, Thick, Cardstock, Thicker, Hole Punched, Transparency, Pre-Printed, LetterHead, Recycled, Archive, Bond, Label, Envelope, Cotton, Colored, Glossy Connectivity: USB 2.0, Gigabit Ethernet, 802.11 b/g/n Wireless, Wi -Fi Direct, Direct USB Monthly Duty Cycle: 60,000 pages Toner Yield: Standard: CMY (1.5K), K (2K); High: CMY (3.5K), K (6K); Waste Toner Bottle B/C (14K/3.5K) Warranty: 1 year parts and labor Special Features: 4.3\" Color Touch Screen, 4GB Built in Flash Disk, Built-in duplex, Reversible ADF, FPOT 17 seconds from ready, up to 1 GB of memory, Gigabit Ethernet, maximum paper capactiy 820 sheets, Power consumption: less than 18W when ready, less than 2.4W in sleep, less than 450W printing, 1.55 kWh TEC Optional Cassette : 520 sheets (CLP-S680A) Optional Memory: 1GB (ML-MEM380) (replaces onboard memory) OS Compatibility: Windows (32/64 bit) XP/2003 Server/Vista/2008 Server/2008 Server R2/Windows 7, Various Linux OS including Red Hat Enterprise 4 and 5, SuSE 10.1, OpenSuSE 10.2 11.2, Fedora Core 5 13, Ubuntu 6.06 10.04, Mac OS X 10.3 10.7, CiTRIX Server, Various Unix.