Get crisp and refined picture quality with the 1200 x 1200 dpi print resolution of the OKI B431DN printer. With 40 ppm printing speed, this OKI laser printer fastens the printing process. The 330 MHz processor with 320 MB RAM of this OKI workgroup printer gives you enhanced printing performance and faster processing output. The duplex 2-sided printing feature of the OKI B431DN boosts the printing productivity. Compatible with internal print server connectivity, this OKI laser printer provides ease for specific area printing communication. Included with a separate toner and image drum configuration, this OKI workgroup printer is highly cost-efficient. The standard USB and parallel ports of the OKI B431DN printer lets you plug-in devices for data transfer. This printer supports Windows 7, Vista, XP, etc to access advanced applications.