HHigh-Speed Laser Printer with Networking and Duplex. The Brother HL-5450DN is a cost efficient monochrome laser printer that is ideal for busy offices or small workgroups. It features reliable fast printing at up to 40ppm and automatic duplex printing for producing professional two-sided documents. Users can share the HL-5450DN with others on their network via its built-in Ethernet interface and wirelessly print from their mobile device via: AirPrint Google Cloud Print Brother iPrint&Scan and Cortado Workplace. Plus it provides flexible paper handling and uses a high-yield 8000-page toner cartridge to help lower running costs.