HP LaserJet Enterprise M611dn Monochrome Printer with built-in Ethernet & 2-sided printing. 

• World’s most secure printing: Print consistently high-quality, 2-sided documents with the HP LaserJet Enterprise M611dn, a monochrome duplex laser printer with JetIntelligence designed to combine performance, energy efficiency, and security
• Self-repair from hacks: With HP Sure Start, this monochrome printer regularly checks its operating code at start-up and repairs itself from attempted hacks
• Centralize printing control: Help build business efficiency with HP Web JetAdmin by easily adding new devices and third-party solutions, updating features, and applying corporate policies
• High-speed performance: Keep your business moving and productive with a 650-sheet total input tray capacity, a 4.3″ color touchscreen, first page out as fast as 5.1 seconds, and print speeds of up to 65 ppm
• Energy-efficient: This black and white laser printer uses low amounts of energy thanks to its innovative design and toner technology
• 2-sided prints at the speed of 1: Speed through tasks and save paper by printing two-sided documents nearly as fast as single-sided
• Performance and protection you can count on: Produce sharp text, bold blacks, and crisp graphics with Original HP 147 series toner cartridges with JetIntelligence, designed to help protect your printer with anti-fraud and cartridge authentication technology