Operating relative humidity range: 20 - 80% 5455C009 Ethernet LAN connection: Yes Wi-Fi: Yes Number of USB 2.0 ports: 1 Supported Windows operating systems: Windows 10, Windows 11, Windows 8.1 Supported MAC operating systems: Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, Mac OS X 11.0 Big Sur, Mac OS X 12.0 Monterey AC input voltage: 220 - 240 V Duty cycle (maximum): 50000 sheets per month Printing: Color printing Print speed (black, normal quality, A4/US Letter): 33 ppm Time to first page (black, normal quality): 7.1s Copying: Color copying Maximum copy resolution: 600 x 600 DPI Maximum number of copies: 999 copies Scanning: Color scanning Duplex scanning: Yes Optical scanning resolution: 600 x 600 DPI Scanner type: A