Prevent unauthorised network access with management features like 802.1X authentication and password protection, and guard sensitive information with support for private printing. Just press the Folder button to view your stored jobs, enter a PIN, and print your documents. Simplify fleet management tasks and reduce IT costs with HP Web Jetadmin (For more information visit www.hp.com/go/webjetadmin). Upgrade your printer as business needs change: this printer accommodates a variety of media types and sizes and lets you expand with an optional two-sided printing accessory (Standard on HP LaserJet P4515x Cut paper consumption in half with optional automatic two-sided printing), additional 500-sheet (2nd 500-sheet paper tray standard on HP LaserJet P4515tn, P4515x and P4515xm Purchase additional trays separately) or 1,500 sheet input tray, an envelope feeder, 5-bin mailbox, stacker, or stapler/stacker accessory. You can also select either regular or high-capacity print cartridges (HP LaserJet CC364A Black Print Cartridge - 10000 pages) HP LaserJet CC364X Black Print Cartridge - 24000 pages) to meet your specific business needs. Improve performance and increase storage capacity with an optional EIO hard disk.