HP LaserJet P4515X is a high-performance, sturdy, and reliable printer ideal for use in large businesses that print documents at high volumes. This workgroup printer has a first page print speed of 8.5 seconds. This HP laser printer can print up to 62 pages of documents per minute in black and white ink. The HP LaserJet P4515X has an enhanced security system built directly into the printer to avoid documents and print jobs from being intercepted by unauthorized users. For added safety, this HP laser printer has an 802.1X authentication and password-protected system that requires users to enter a unique PIN number into the keypad to print documents. As a workgroup printer, it features a 540 MHz processor and has over 128 MB of memory that allows it to process and print both simple and complex documents. The HP LaserJet P4515X has a 1,100-sheet input tray and features a two-sided printing function for automatic double-sided printing. This printer is compatible with MAC OS and Windows 2000, XP, and Vista operating systems and uses a USB 2.0 port to seamlessly connect to notebooks and desktop computers for instant printing.