HP Color LaserJet Enterprise M455dn Printer (3PZ95A) - Processor speed: 800 MHz, Print Speed: Normal: Up to 27 ppm, Print technology: Laser, Resolution Technology: HP ImageREt 3600, Enhanced (600x600 dpi), Fine Lines (1200x1200 dpi), Quickview (300x300 dpi), Memory: 1.25 GB, Display: 6.75 cm diagonal Colour TFT-LCD back-lit (960 (H) x 240 (V), Connectivity: 2 x Hi-Speed USB 2.0 Host, 1 x Hi-Speed USB 2.0 Device, 1 x Gigabit Ethernet 10/100/1000T network, Media sizes supported: Tray 1: A4, RA4, A5, B5 (JIS), B6 (JIS), 10 x 15 cm, A6, 16K, envelopes (B5, C5 ISO, C6, DL ISO) Custom: 76 x 127 to 216 x 356 mm, Paper handling input: 250 sheet input tray, Paper handling output: 150 sheet output bin, Duplex printing: Automatic (default), Compatible operating systems: Windows Client OS (32/64-bit): Win10, Win8.1, Win7 Ultimate, Mobile OS: iOS, Android, Mac: Apple MacOS High Sierra v10.13, Apple MacOS Mojave v10.14, Apple MacOS Catalina v10.15