The HP Color LaserJet Enterprise M455dn (3PZ95A) 28ppm A4 colour laser printer is an entry-level Enterprise-class printer with speeds up to 28 ppm and strongest security. - Print only - Print speed letter: Up to 28 ppm black and color - Auto duplex printing; 2 paper trays (standard); 2.7 inch color graphics display - The worlds most secure printingJetIntelligence cartridge - Specially engineered to help your printer print faster and print up to 33% more pages. - Optional high-capacity trays - Additional high-capacity paper tray allows you to use your printer for longer without having to reload paper frequently. - Print from mobile device - This printer can be used to print from mobile devices. - Two-sided printing - Double-sided printing is available with this printer. Easy to use, simple to manage - HP Future - Smart firmware can be updated with the latest features2 to optimize your investment for years to come. Centralize control of your printing environment with HP Web Jetadminand help build business efficiency. Easily enable workflows across your fleet with a consistent user experience and intuitive, tablet-like icons. - Enhanced productivity to empower work teams - Give workgroups what they need to succeed with hundreds of HP and third-party solutions and card reader support. Help ensure the security of confidential information with PIN/Pull printing to retrieve print jobs. Stay connected with an optional accessory for wireless, Bluetooth Low Energy, and NFC touch-to-print. - Sustainability is smart business - Help save paper right out of the box. Two-sided (duplex) printing is set at default for automatic savings. Help reduce wasted paper and toner by only printing jobs that are truly needed, using HP Roam for Business. Save energy without sacrificing performancethis printer is ENERGY STAR and Blue Angel certified. - The world's most secure printing - The operating code (BIOS) is automatically checked during startup and repairs itself if compromised. Common Criteria certified to continually monitor memory activity to detect and stop attacks in real time. Firmware is automatically checked during startup to determine if its authentic codedigitally signed by HP.SpecificationsAccessoriesHP LaserJet 550-sheet Feeder Tray, HP Black Original LaserJet Toner Cartridge (~2,400 pages) HP Cyan, Magenta, Yellow Original LaserJet Toner Cartridges (~2,100 pages each)Compatible Operating Systems - Windows Client OS (32/64 bit)-, Win10, Win8.1, Win7 Ultimate, Mobile OS-, i - OS, Android, Mac-, Apple Mac - OS High Sierra v10.13, Apple Mac - OS Mojave v10.14, Apple Mac - OS Catalina v10.15, Discrete PCL6 Printer DriveDimensionsPackage dimensions 497 x 379 x 583 mm (W x D x H)Duplex Print OptionAutomaticDuty Cycle - Up to 55,000 pages monthly