HP OFFICEJET PRO 8023 E-ALL-IN-ONE

Print Speed: Black (A4, ISO): Up to 20 ppm, Color (A4, ISO): Up to 10 ppm Memory: Standard: 256 MB, Maximum: 256 MB DDR3 SDRAM Paper Handling: Standard: 1, Maximum: 1 Supported Operating Systems: Windows: 10, 8.1, 8, 7, Windows Server 2008 R2 64-bit, Windows Server 2008 R2 64-bit (SP1),  Windows Server 2012 64-bit, Windows Server 2012 R2 64-bit, Windows Server 2016 Power Requirements: Input voltage: 100 to 240 VAC (+/- 10%), 50/60 Hz (+/- 3 Hz) Power Consumption: Printing: Up to 21 watts, Ready: 5.80 watts, Sleep: 1.00 watts, Manual-off: 0.08 watts Typical Electricity Consumption (TEC): 0.20 kWh/Week Power Supply Type: Internal Weight: 8.2 kg